Question

Help plz..And No links!! I repeat No links!!

Answer 1

Explanation:

Apply foil method.

First,

`4z * z = 4 {z}^(2)`

Outer,

`z * - 1 = - z`

Inner,

`4z * 1 = 4z`

Last,

`1 * - 1 = - 1`

Add terms.

`4 {z }^(2) + 3z - 1`