gabethababe gabethababe

05-02-2020
Mathematics

contestada

Given f(x) = x² + 8x and g(x) = x4, choose
the expression for (fºg)(x).

Respuesta :

zarau374 zarau374

05-02-2020

Answer: fg(x) = 16x² + 32x

Method:
First you must substitute g(x) into f(x).
Where the x is in the equation f(x) substitute the equation of g(x).
So it should be fg(x) = (x4)²+ 8(x4).
Then simplify the equation to
fg(x) = 16x² + 32x

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