if g(x)=3x+2 and f(x) = 2x-1 find f(g(x)-f(x))

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if g(x)=3x+2 and f(x) = 2x-1 find..

f(g(x)-f(x))

Guest Jun 18, 2014

+130511

+5

Best Answer

This says that we want to subtract f(x) from g(x) and put that result back into f(x).

So g(x) - f(x) = (3x + 2) - (2x - 1) = x + 3

So f(x + 3) = 2(x + 3) - 1 = 2x + 6 - 1 = 2x + 5

CPhill Jun 19, 2014

CPhill · Answer 1 · 2014-06-19T05:56:32

This says that we want to subtract f(x) from g(x) and put that result back into f(x).

So g(x) - f(x) = (3x + 2) - (2x - 1) = x + 3

So f(x + 3) = 2(x + 3) - 1 = 2x + 6 - 1 = 2x + 5