Question
Answer
$$(x+7x+8x+9x+10x)^4=1500625x^4$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}(x+7x+8x+9x+10x)^4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}(35x)^4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}1500625x^4\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{x} + \color{red}{7x} + \color{green}{8x} + \color{orange}{9x} + \color{orange}{10x} = \color{orange}{35x} $$ |
| ② | $$ \left( 35x \right)^4 = 35^4x^4 = 1500625x^4 $$ |
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