SOLUTION: If f(x)=(7x-3) and g(x)=(x-4), find (fg)(x).

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Question 934183: If f(x)=(7x-3) and g(x)=(x-4), find (fg)(x).
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

If f%28x%29=%287x-3%29 and g%28x%29=%28x-4%29,
then %28fg%29%28x%29=f%28x%29%2Ag%28x%29
%28fg%29%28x%29=%287x-3%29%2A%28x-4%29
%28fg%29%28x%29=7x%5E2-7x%2A4-3%2Ax-3%28-4%29
%28fg%29%28x%29=7x%5E2-28x-3x%2B12
%28fg%29%28x%29=7x%5E2-31x%2B12