Expresiones Algebraicas

Expresiones Algebraicas

expresiones_algebraicas

Expresión algebraica

Una expresión algebraica es expresión que tiene números y símbolos (letras) combinados mediante operaciones matemáticas. Dependiendo del contexto las letras pueden representar números conocidos, desconocidos o variables.

Ejemplos:

ab^2+3a

\pi r^2

3x+4=13

En el primer ejemplo, a y b se llaman indeterminadas (o variables).

En el segundo ejemplo la expresión algebraica nos permite conocer la longitud de una circunferencia, el símbolo \pi es una constante conocida y r que representa el radio de la circunferencia puede tomar cualquier valor no negativo.

En el tercer ejemplo la expresión algebraica está igualada a una expresión numérica, en ese caso la letra x representa un valor desconocido (incógnita).

Las expresiones algebraicas puede clasificarse en racionales o irracionales, y las racionales en enteras o fraccionarias.

Una expresión algebraica es irracional cuando las letras están en el radicando de una raíz, es fraccionaria cuando las letras están como divisores y es entera cuando las letras están afectadas solo a operaciones de suma, resta y multiplicación, recordemos que si la letra está como la base de una potencia, se encuentra multiplicándose tantas veces como lo indica el exponente.

Ejemplos:

p^2q^3+\frac{2}{p}

x+x^2-3x^3-7x^4

\sqrt{2a}+\sqrt{3b}

A las expresiones algebraicas enteras se las conoce con el nombre de polinomios.

Número de Visitas: 1856

Repaso de Lenguaje simbólico:

  1. Resuelvan las siguientes operaciones:
    a) 2a+3a-8a=
    b) 2x+4y+7x-5y=
    c) 4p^2-5p^2-p^2+9p^2=
    d) 4x+5x^3-x+9x^3=
  2. Resuelvan las siguientes operaciones:
    a) a.a^3.a^4=
    b) 3x.(-6x^2)=
    c) -4ab.(-3b)=
    d) 2x.(-3x^3).(-4x^4)=
  3. Resuelvan los siguientes cuadrados:
    a) (m+n)^2=
    b) (x+3)^2=
    c) (a-b)^2=
    d) (a-4)^2=

Número de Visitas: 998


Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Warning: Creating default object from empty value in /home/roberprof/roberprof.com/wp-includes/comment-template.php on line 815

Multiplicación de binomios

(a + b) . (x + y) =

= a . (x + y) + b . (x + y )

= ax + ay + bx + by

(a + b) . (a – b) =

= a . (a – b) + b . (a – b)

= aa – ab + ba – bb

= a2ab + ab – b2

= a2 – b2

Número de Visitas: 40727