Question

Simplify A (x - 5) - A (x + 2)

Answer 1

First Use Distributive Property
$a(x - 5) - a(x + 2) \\ ax - 5a - ax - 2a$
Now We Combine Like Terms
$ax - 5a - ax - 2a \\ (ax - ax) - ( 5a - 2a) \\ - 7a$
This is simplified,
$- 7a$
We can infer that A will cancel, due to the vaule being the same. The form that started out in can be considered expanded form, simplified from is simply more simple and makes calculations quicker

Answer 2

ax -5a - ax+ a2= ax-ax=0 5a+a2