Question

Expand (-2x + 3y + 2z)^2

Answer 1

By (a+b+c) ^2=a^2+b^2+c^2+2ab+2bc+2ac, (-2x+3y+2z) ^2=(-2x) ^2+(3y) ^2+(2z) ^2+2(-2x) (3y) +2(3y) (2z) +2(-2x) (2z) =4x^2+9y^2+4z-12xy+12yz-8xz.

It is used to calculate the whole square that has combine with terms to expand it for having right answered it.

It has to expand with suitable identities and carry out least numbers and expand it.

Answer 2

Answer:

Pls refer to the attachment given below :