Question
Answer
$$14\sqrt{15}-\sqrt{60}=12\sqrt{15}$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}14\sqrt{15}-\sqrt{60}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}14\sqrt{15}-2\sqrt{15} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}12\sqrt{15}\end{aligned} $$ | |
| ① | $$ - \sqrt{60} =
- \sqrt{ 2 ^2 \cdot 15 } =
- \sqrt{ 2 ^2 } \, \sqrt{ 15 } =
- 2 \sqrt{ 15 }$$ |
| ② | Combine like terms |
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