3 years ago

Let f(x) = -4x + 7 and g(x) = 10x - 6. Find f(g(x)).

1 answer:

8 0

$f(x)=-4x+7\\
g(x)=10x-6\\\\\Substitute\ x=10x-6\ to\ f(x)\\
f(g(x))=-4(10x-6)+7\\
f(g(x))=-40x+24+7=-40x+31\\\\\
Solution\ is\ f(g(x))=-40x+31.$

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