If f(x)=2 x^2+3, g(x)=5 x-2, then findgof - Vidyadip

Question

If $f(x)=2 x^2+3, g(x)=5 x-2$, then findgof

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Answer

$ (g \circ f)(x)=g(f(x))$
$=g\left(2 x^2+3\right)$
$=5(2 x+3)-2$
$=10 x^2+13 $

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