Question
Answer
$$7\sqrt{49}-2\sqrt{49}=35$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}7\sqrt{49}-2\sqrt{49}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}49-14 \xlongequal{ } \\[1 em] & \xlongequal{ }35\end{aligned} $$ | |
| ① | $$ 7 \sqrt{49} = 7 \cdot 7 = 49 $$ |
| ② | $$ - 2 \sqrt{49} = -2 \cdot 7 = -14 $$ |
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