Question

I need help finding b

Answer 1

Explanation:

You would find a the same way as finding B, just backwards

`( {x}^(2) - 1)( {x}^(2) + 5)`

Distributing we get

`{x}^(4) + 5 {x}^(2) - {x}^(2) - 5`

Simplifying it...

`{x}^(4) + 4 {x}^(2) - 5`