Answer
$$4xx+3-6x-6=4x^2-6x-3$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4xx+3-6x-6& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4x^2+3-6x-6 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}4x^2-6x-3\end{aligned} $$ | |
| ① | $$ 4 x x = 4 x^{1 + 1} = 4 x^2 $$ |
| ② | Combine like terms: $$ 4x^2+ \color{blue}{3} -6x \color{blue}{-6} = 4x^2-6x \color{blue}{-3} $$ |
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