Question
Answer
$$-x(11x+4)=-11x^2-4x$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-x(11x+4)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-(11x^2+4x) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-11x^2-4x\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{x} $ by $ \left( 11x+4\right) $ $$ \color{blue}{x} \cdot \left( 11x+4\right) = 11x^2+4x $$ |
| ② | Remove the parentheses by changing the sign of each term within them. $$ - \left(11x^2+4x \right) = -11x^2-4x $$ |
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