SOLUTION: Find {{{ (f of g)(x) }}} if {{{ f(x)=3x^(2) g(x)=5-x }}}

Algebra ->  Rational-functions -> SOLUTION: Find {{{ (f of g)(x) }}} if {{{ f(x)=3x^(2) g(x)=5-x }}}      Log On


   



Question 1154868: Find +%28f+of+g%29%28x%29+ if +f%28x%29=3x%5E%282%29+g%28x%29=5-x+
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

(f o g)(x)
if +f%28x%29=3x%5E2 and +g%28x%29=5-x+
(f o g)(x)=f%28g%28x%29%29
(f o g)(x)=f%285-x%29
(f o g)(x)=3%285-x%29%5E2
(f o g)(x)=3%2825-10x%2Bx%5E2%29
(f o g)(x)=3x%5E2-30x%2B75