Question

How do you simplify `(x-3)/(4x-12) * (3x+9)/(4x+12)`?

Answer 1

`=(x - 3)/(4(x - 3)) xx (3(x + 3))/(4(x + 3))`

`= (cancel(x - 3))/(4(cancel(x - 3))) xx (3(cancel(x + 3)))/(4(cancel(x + 3))`

`=3/16`

Hopefully this helps!