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1-83.

If $f(x) = x^2 + 5x$ and $g(x) = x + 3$ , evaluate each of these expressions.

$f(-2)$
Hint (a):
$f(-2) = (-2)^2 + 5(-2) =$
Answer (a):
$-16$

$g(-2)$
Hint (b):
$g(-2) = (-2) + 3 =$

$f(g(-2))$
Hint (c):
$f(g(−2)) = f$ (part (b)).

$g(f(-2))$
Hint (d):
$g(f(-2)) = g$ (part (a)).

$f(f(-2))$
Hint (e):
Refer to hint (d).

$g(g(-2))$
Hint (f):
Refer to hint (c).

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