Question

What expression is equivalent to (5z^2+3z+2)^2?

Answer 1

Answer:

Use the identity (a+b+c) ^2= a^2+b^2+c^2+2ab+2bc+2ca

(5z^2) ^2+(3z) ^2+(2) ^2+2(5z^2)(3z) +2(3z)(2)+2(2)(5z^2)

Now is clear. You can.