Question
Answer
$$x^3-7x^2x^2+9x+14=-7x^4+x^3+9x+14$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}x^3-7x^2x^2+9x+14& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^3-7x^4+9x+14 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-7x^4+x^3+9x+14\end{aligned} $$ | |
| ① | $$ 7 x^2 x^2 = 7 x^{2 + 2} = 7 x^4 $$ |
| ② | Combine like terms: $$ -7x^4+x^3+9x+14 = -7x^4+x^3+9x+14 $$ |
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