CPM Homework Help : PC Problem 1-115

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1-115.

Given $f\left(x\right) = x^{2} + 1$ , $g\left(x\right) = 2x − 8$ , and $h(x)=\frac{1}{2}x+1$ . Find the following:

Hint:

Be sure to show all steps leading to the answer

$f\left(x\right) + g\left(x\right)$
Answer (a):
$x^2+2x-7$

$g\left(x\right)h\left(x\right)$
Answer (b):
$x^2-2x-8$

$g\left(h\left(x\right)\right)$
Answer (c):
$x-6$

$f\left(f\left(x\right)\right)$
Answer (d):
$x^4+2x^2+2$

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