(8z+7)(z-2)

Question

before the section of problems it says "write each product as a trinomial"

Answer 1

When it says "write each product as a trinomial", this basically means that your final product will have three (tri) parts.

(8z + 7)(z-2)- To solve this method, you have to use the FOIL method- F-FIRST, O-OUTSIDE, I-INSIDE, L-LAST

First: 8z x z= 8z^2

Outside: 8z x -2= -16z

Inside: 7 x z= 7z

Last: 7 x -2= -14

After putting it all together, your final answer will be 8z^2 -11z-14

Answer 2

Hello, thank you for taking the time to post your question!

You want to use the FOIL method to multiply this out, meaning multiply together

First terms

Outer terms

Inner terms

Last terms

For this expression that becomes

(8z + 7)(z – 2)

=8z(z) + 8z(-2) + 7(z) + 7(-2)

=8z^2 – 9z - 14

I hope that helps you get moving in a better direction on this type of question! Feel free to reach out if you have any additional questions beyond that :)