Answer
$$\sqrt{288}=12\sqrt{2}$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}\sqrt{288}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}} \sqrt{ 144 \cdot 2 } \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}} \sqrt{ 144 } \cdot \sqrt{ 2 } \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}12\sqrt{2}\end{aligned} $$ | |
| ① | Factor out the largest perfect square of 288. ( in this example we factored out $ 144 $ ) |
| ② | Rewrite $ \sqrt{ 144 \cdot 2 } $ as the product of two radicals. |
| ③ | The square root of $ 144 $ is $ 12 $. |
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Simplify Radical Expression