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Encuentra el error: Cuadrado de un binomio

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Encuentra el error: Cuadrado de un binomio

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Arelli Mezzano
Arelli Mezzano
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Encuentra el error: Cuadrado de un binomio
 

Encuentra el error: Cuadrado de un binomioOnline version

Reta tu ojo experto

by Arelli Mezzano
1

(x+4)^2 = x^2 + 16. ¿Qué error hay?

2

(a-3)^2 = a^2 -6a. ¿Qué error hay?

3

(x+5)^2 = x^2 + 10x + 25. ¿Qué error hay?

4

(2x+3)^2 = 4x^2 + 9. ¿Qué error hay?

5

(3a-2)^2 = 9a^2 -12a +4. ¿Qué error hay?

6

(a+b)^2 = a^2 + b^2. ¿Qué error hay?

7

(x+5)^2 = x^2 + 5x + 25. ¿Qué error hay?

8

(2x+3)^2 = 4x^2 + 6x + 9. ¿Qué error hay?

9

(3a-2)^2 = 9a^2 -4. ¿Qué error hay?

10

(a+b)^2 = a^2 + 2ab + b^2. ¿Qué error hay?

Explicación

Se omite 2·x·4 = 8x, que es el término del medio.

Faltan +9 al final; el cuadrado correcto es a^2-6a+9.

La expansión es correcta.

Faltan +12x; el doble producto es 12x.

La expansión es correcta.

La parte a^2 y b^2 está bien; el error sería no incluir 2ab.

El término medio correcto es 10x; se escribió 5x.

El doble producto correcto es 12x, no 6x.

Faltan -12a; el término lineal es -12a.

Expansión correcta.

 
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