SOLUTION: evaluate (fg)(x) if f(x)=2x² and g(x)=3x-2 when x=-2

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Question 1158559: evaluate (fg)(x) if f(x)=2x² and g(x)=3x-2 when x=-2
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

evaluate %28fg%29%28x%29 if f%28x%29=2x%5E2 and g%28x%29=3x-2 when x=-2
%28fg%29%28x%29=f%28x%29%2Ag%28x%29
%28fg%29%28x%29=2x%5E2%283x-2%29
%28fg%29%28x%29=6x%5E3-4x%5E2
when x=-2

%28fg%29%28-2%29=6%28-2%29%5E3-4%28-2%29%5E2
%28fg%29%28-2%29=6%28-8%29-4%284%29
%28fg%29%28-2%29=-48-16
%28fg%29%28-2%29=-64