Question
Answer
$$\sqrt{8}\cdot98=196\sqrt{2}$$
Explanation
| $$ \begin{aligned}\sqrt{8}\cdot98& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}196\sqrt{2}\end{aligned} $$ | |
| ① | $$ 98 \sqrt{8} =
98 \sqrt{ 2 ^2 \cdot 2 } =
98 \sqrt{ 2 ^2 } \, \sqrt{ 2 } =
98 \cdot 2 \sqrt{ 2 } =
196 \sqrt{ 2 } $$ |
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