Question

Multiply (x + y)(x + y + z).

Question 8 options:

x2 + y2 + 2yx + xz + yz


z2 + y2 + 3yz + xy + yz


x2 – y2 + 2yx – xz + yz


z2 + x2 – 2yx + xz + yz

Answer 1

first choice is the correct answer