Question

Multiply using the FOIL method.
(8z + 7)(9z-1)

Answer 1

Answer:
`72z^(2) +55z-7`

Explanation:

We multiply each component with each other:

8z * 9z = 72z^2

8z * -1 = -8z

9z * 7 = 63z

7 * -1 = -7

We then add it all together, 63z + -8z = 55z and get

`72z^(2) +55z-7`