Answer
$$sqrt-4(sqrt-16)=-3qrst+64$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}sqrt-4(sqrt-16)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}sqrt-(4qrst-64) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}qrst-4qrst+64 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}-3qrst+64\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{4} $ by $ \left( qrst-16\right) $ $$ \color{blue}{4} \cdot \left( qrst-16\right) = 4qrst-64 $$ |
| ② | Remove the parentheses by changing the sign of each term within them. $$ - \left( 4qrst-64 \right) = -4qrst+64 $$ |
| ③ | Combine like terms: $$ \color{blue}{qrst} \color{blue}{-4qrst} +64 = \color{blue}{-3qrst} +64 $$ |
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