Question

Expand & simplify (x-2)(x+4)

Answer 1

You have to FOIL (multiply the first, then outer, then inner, then last)

(x-2)(x+4)

First: multiply x by x to get x².
Outer: multiply x by 4 to get 4x.
Inner: multiply -2 by x to get -2x.
Last: multiply -2 by 4 to get -8. 

This gives you:

x² + 4x - 2x - 8

Combine like terms to get your final answer:

x² + 2x - 8

Hope this helped!! xx

Answer 2

I believe your answer will be x² + 2x - 8 hope this helped! :P