Combining like terms (clt) can only happen when the variable parts are

like.

You can combine them when they are like

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

it is true

step-by-step explanation:

all the combinations add up i used   calculator