Question

A.(4x-5y)2 B.- (3X + 2Y)2 C.- (x - y) (x + y)​

Answer 1

Explicación paso a paso:

Binomio al  cuadrado:

(a ± b)² = a² ± 2ab + b²

A.(4x-5y)²

(4x-5y)² = (4x)²-2(4x)(5y)+(5y)²  

(4x-5y)² = 16x²-40xy+25y²

B.- (3X + 2Y)²

(3x+2y)² = (3x)²+2(3x)(2y)+(2y)²  

(3x+2y)² = 9x²+12xy+4y²

C.- (x - y) (x + y)​

(x - y) (x + y)​ = x²  - y²