Answer
(g$\circ$f)(x)=2x$^2$-2x-14
Work Step by Step
(g$\circ$f)(x)=g(f(x))
(g$\circ$f)(x)=g(x$^2$-x-4)
(g$\circ$f)(x)=2(x$^2$-x-4)-6
(g$\circ$f)(x)=2x$^2$-2x-8-6
(g$\circ$f)(x)=2x$^2$-2x-14
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