Question

(2a+b)2-(a-b)2 por mim ajudem ai​

Answer 1

Oie, Td Bom?!

$= (2a + b) {}^{2} - (a - b) {}^{2}$

$= 4a {}^{2} + 4ab + b {}^{2} - (a {}^{2} - 2ab + b {}^{2} )$

$= 4a {}^{2} + 4ab + b {}^{2} - a {}^{2} + 2ab - b {}^{2}$

$= 3a {}^{2} + 6ab$

Att. Makaveli1996