Question
Answer
$$\sqrt{49}\cdot17\sqrt{2}=119\sqrt{2}$$
Explanation
| $$ \begin{aligned}\sqrt{49}\cdot17\sqrt{2}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}119\sqrt{2}\end{aligned} $$ | |
| ① | $$ 17 \sqrt{98} =
17 \sqrt{ 7 ^2 \cdot 2 } =
17 \sqrt{ 7 ^2 } \, \sqrt{ 2 } =
17 \cdot 7 \sqrt{ 2 } =
119 \sqrt{ 2 } $$ |
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