Question
Answer
$$\dfrac{7\cdot0}{\sqrt{54}}=0$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}\frac{7\cdot0}{\sqrt{54}}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{7\cdot0}{\sqrt{54}}\frac{\sqrt{54}}{\sqrt{54}} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}\frac{0}{54} \xlongequal{ } \\[1 em] & \xlongequal{ }0\end{aligned} $$ | |
| ① | Multiply the numerator and denominator by the conjugate of the denominator . $$\color{blue}{ \sqrt{54}} $$. |
| ② | Multiply in a numerator. $$ \color{blue}{ 0 } \cdot \sqrt{54} = 0 \sqrt{6} $$ Simplify denominator. $$ \color{blue}{ \sqrt{54} } \cdot \sqrt{54} = 54 $$ |
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