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Find composite functions

Problem

f(x)=6x4g(x)=3x22x10\begin{aligned} f(x)&=6x-4\\\\ g(x)&=3x^2-2x-10 \end{aligned}
Write left parenthesis, g, circle, f, right parenthesis, left parenthesis, x, right parenthesis as an expression in terms of x.
left parenthesis, g, circle, f, right parenthesis, left parenthesis, x, right parenthesis, equals
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