Answer
$$-(x-1)\cdot11x=-11x^2+11x$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-(x-1)\cdot11x& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-(11x^2-11x) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-11x^2+11x\end{aligned} $$ | |
| ① | $$ \left( \color{blue}{x-1}\right) \cdot 11x = 11x^2-11x $$ |
| ② | Remove the parentheses by changing the sign of each term within them. $$ - \left(11x^2-11x \right) = -11x^2+11x $$ |
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