Question

expand the following (-x+2y-3z)²​

Answer 1

Answer:

Step-by-step explanation:

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

=x^2+2y^2+9z^2-4xy-12zy-4xy