Question

d) (2x + 3y)² =

=(2x)² +2. 2x __+__=

=__+ 12xy +___​

Answer 1

Oieee

Bom,

___________

(a + b)² = a² + 2b + b²

_

(2x + 3y)² →

(2x)² + 2(2x)(3y) + (3y)² →

4x² + 2(6xy) + 9y² →

4x² + 12xy + 9y²

R) 4x² + 12xy + 9y²

____________________

Qualquer dúvida me avise

A$$: MarcosPCV