Question
Answer
$$4x\cdot2(x+4)=8x^2+32x$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4x\cdot2(x+4)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8x(x+4) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}8x^2+32x\end{aligned} $$ | |
| ① | $$ 4 x \cdot 2 = 8 x $$ |
| ② | Multiply $ \color{blue}{8x} $ by $ \left( x+4\right) $ $$ \color{blue}{8x} \cdot \left( x+4\right) = 8x^2+32x $$ |
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