Question
Answer
$$-4x^2(-7x)=28x^3$$
Explanation
| $$ \begin{aligned}-4x^2(-7x)& \xlongequal{ }--28x^3 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}28x^3\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left(-28x^3 \right) = 28x^3 $$ |
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Simplify Rational Expressions