Question

ESCRIBE EN EL CUADRNO LOS SIGUIENTES EJERCICIOS Y ENCUENTRA LA DIFERENCIA DE CUADRADOS.

A. (x + b)(x – b)=

B. (2x + y)(2x – y)=

C. (x + 2y)(x – 2y)=

D. (3b + m)(3b – m)=

E. (a + b)(a – b)=

F. (2x + y)(2x – y)=

G. (5f + 3c)(5f – 3c)=

H. (4x + 6y)(4x – 6y)=

I. (7c + 2b)(7c – 2b)=

J. (5m + n)(5m – n)=

K. (b + c)(b – c)=

L. (9x + 4c)(9x – 4c)=

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Answer 1

SOLUCIÓN: diferencia de cuadrados formula: (a-b)(a+b)= $a^{2}$$-b^{2}$

A. (x + b)(x – b)= $x^{2} -b^{2}$

B. (2x + y)(2x – y)=  $4x^{2} - y^{2}$

C. (x + 2y)(x – 2y)=  $x^{2} - 4y^{2}$

D. (3b + m)(3b – m)= $9b^{2} - m^{2}$

E. (a + b)(a – b)= $a^{2} - b^{2}$

F. (2x + y)(2x – y)= $4x^{2} - y^{2}$

G. (5f + 3c)(5f – 3c)= $25f^{2} - 9c^{2}$

H. (4x + 6y)(4x – 6y)= $16x^{2} - 36y^{2}$

I. (7c + 2b)(7c – 2b)= $49c^{2} - 4b^{2}$

J. (5m + n)(5m – n)= $25m^{2} - n^{2}$

K. (b + c)(b – c)= $b^{2} - c^{2}$

L. (9x + 4c)(9x – 4c)= $81x^{2} - 16c^{2}$