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G(x)=4x-3f(x)=3x-4Find (g*f)(-4x)

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\begin{gathered} g(x)=4x-3 \\ f(x)=3x-4 \\ (g\mathrm{}f)(-4x)=\text{?} \\ f(-4x)=3(-4x)-4=-12x-4 \\ (g.f)(-4x)=4(-12x-4)-3=-48x-16-3=-48x-19 \end{gathered}

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