Question

Analise a expressão (4x² - 4y²) / (2x - 2y) e simplifique:

Answer 1

Oie, Td Bom?!

$= \frac{4x {}^{2} - 4y {}^{2} }{2x - 2y}$

$= \frac{2(2x {}^{2} -2 y {}^{2}) }{2(x - y)}$

$= \frac{2(x {}^{2} - y {}^{2} )}{x - y}$

$= \frac{2(x - y) \: . \: (x + y)}{x - y}$

$= 2(x + y)$

$= 2x + 2y$

Att. Makaveli1996