Question

Qual é a forma fatorada da expressão

(x+y)^2-(2x+y)(-x+y)?​

Answer 1

Oie, Td Bom?!

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

$= x {}^{2} + 2xy + y {}^{2} - ( - 2x {}^{2} + 2xy - xy + y {}^{2} )$

$= x {}^{2} + 2xy + y {}^{2} - ( - 2x {}^{2} + xy + y {}^{2} )$

$= x {}^{2} + 2xy + y {}^{2} + 2x {}^{2} - xy - y {}^{2}$

$= 3x {}^{2} + xy$

Att. Makaveli1996