CPM Homework Help : INT2 Problem 5-10

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5-10.

What values of $x$ will make the following equations true?

$x^2=16$
Hint (a):
There are two values of $x$ that will make this equation true.

$x=\sqrt{16}$
Answer (b):
$x=4$

$|x|=4$
Hint (c):
There are two values of $x$ that will make this equation true.

$x+3=\sqrt{16}$
Step (d):
$x+3=4$

$x^2=-16$
Hint (e):
Can you come up with a real number that when multiplied times itself, gives a negative number?

$x^2+4=0$
Hint (f):
See hint (e).

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