Tap the blue circles to see an explanation.
| $$ \begin{aligned}2\sqrt{24}+3\sqrt{150}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}4\sqrt{6}+15\sqrt{6} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}19\sqrt{6}\end{aligned} $$ | |
| ① | $$ 2 \sqrt{24} =
2 \sqrt{ 2 ^2 \cdot 6 } =
2 \sqrt{ 2 ^2 } \, \sqrt{ 6 } =
2 \cdot 2 \sqrt{ 6 } =
4 \sqrt{ 6 } $$ |
| ② | $$ 3 \sqrt{150} =
3 \sqrt{ 5 ^2 \cdot 6 } =
3 \sqrt{ 5 ^2 } \, \sqrt{ 6 } =
3 \cdot 5 \sqrt{ 6 } =
15 \sqrt{ 6 } $$ |
| ③ | Combine like terms |