### Home > INT2 > Chapter 5 > Lesson 5.1.1 > Problem5-10

5-10.

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

1. $x^2=16$

There are two values of $x$ that will make this equation true.

1. $x=\sqrt{16}$

$x=4$

1. $|x|=4$

There are two values of $x$ that will make this equation true.

1. $x+3=\sqrt{16}$

$x+3=4$

1. $x^2=-16$

Can you come up with a real number that when multiplied times itself, gives a negative number?

1. $x^2+4=0$

See hint (e).