# How do you order the following from least to greatest 4.8, sqrt17, -sqrt8, -4.2, sqrt25?

Jan 21, 2017

Square the numbers (not the negative signs) then place them in order.

#### Explanation:

${4.8}^{2}$ = 23.04,
${\left(\sqrt{17}\right)}^{2}$ = 17,
- ${\left(\sqrt{8}\right)}^{2}$ = - 8,
- ${4.2}^{2}$ = - 17.64,
${\left(\sqrt{25}\right)}^{2}$ = 25, now order them least to greatest:
- 17.64, - 8, 17, 23.04, then 25 or

• 4.2, - $\sqrt{8}$, $\sqrt{17}$, 4.8, $\sqrt{25}$