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
