Question

Multiply: (x – 4)(x + 5)

Answer 1

`(x-4)(x+5)=x^2+x-20`

Hope this helps.

Answer 2

x² + x - 20

Explanation:

Step 1: Expand using FOIL

x² + 5x - 4x - 20

Step 2: Combine like terms

x² + x - 20