Answer
$$(j^5k^7)^4=j^{20}k^{28}$$
Explanation
| $$ \begin{aligned}(j^5k^7)^4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}j^{20}k^{28}\end{aligned} $$ | |
| ① | $$ \left( j^5k^7 \right)^4 = 1^4 \left( j^5 \right)^4 \left( k^7 \right)^4 = j^{20}k^{28} $$ |
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