SOLUTION: For the functions {{{ f }}} and {{{ g }}} given by: {{{ f(x)=x^2 - 3x }}} and {{{ g(x)= -x+2 }}} find (FºG)(x) I solved the question, but I need some help on how to simplify i

Algebra ->  Rational-functions -> SOLUTION: For the functions {{{ f }}} and {{{ g }}} given by: {{{ f(x)=x^2 - 3x }}} and {{{ g(x)= -x+2 }}} find (FºG)(x) I solved the question, but I need some help on how to simplify i      Log On


   

Question 286840: For the functions +f+ and +g+ given by:
+f%28x%29=x%5E2+-+3x+ and +g%28x%29=+-x%2B2+
find (FºG)(x)
I solved the question, but I need some help on how to simplify it
my answer was +%28-x%2B2%29%5E2+-3%28-x%2B2%29+
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
turn it into (2-x)^2-3*(2-x)
use foil to work out (2-x)^2
4-2x-2x+x^2-6+3x
4-4x+x^2-6+3x
-2-x+x^2
x^2-x-2
(x-2)*(x+1)