Question 1135781


{{{f(x) = 10x^2 - 8x}}},
{{{g(x) = 20x - 4}}}


({{{f}}}∘{{{g{{{)({{{12}}})

({{{f}}}∘{{{g{{{)({{{x}}})={{{f(g(x))}}}


({{{f}}}∘{{{g{{{)({{{x}}})={{{f(20x - 4)}}}


({{{f}}}∘{{{g{{{)({{{x}}})={{{10(20x - 4)^2 - 8(20x - 4)}}}


({{{f}}}∘{{{g{{{)({{{x}}})={{{10(400x^2 - 160x+16) - 160x +32}}}


({{{f}}}∘{{{g{{{)({{{x}}})={{{4000x^2 - 1600x+160 - 160x +32}}}


({{{f}}}∘{{{g{{{)({{{x}}})={{{4000x^2 - 1760x+192}}}


then

({{{f}}}∘{{{g{{{)({{{12}}})={{{4000*12^2 - 1760*12+192}}}


({{{f}}}∘{{{g{{{)({{{12}}})={{{4000*144 - 21120+192}}}


({{{f}}}∘{{{g{{{)({{{12}}})={{{576000 - 21120+192}}}


({{{f}}}∘{{{g{{{)({{{12}}})={{{555072}}}