Question
Answer
$$(-6y-y)^2=49y^2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}(-6y-y)^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}(-7y)^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}49y^2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-6y} \color{blue}{-y} = \color{blue}{-7y} $$ |
| ② | $$ \left( -7y \right)^2 = (-7)^2y^2 = 49y^2 $$ |
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