Question

5 to the power -1 into 7 to the power 2 by 5 to the power 2 inyo 7 to the power -4​

Answer 1

$\frac{ {5}^{ - 1} \times {7}^{2} }{ {5}^{2} \times {7}^{ - 4} } \\ \\ = > \frac{ {7}^{2} \times {7}^{4} }{ {5}^{2} \times {5}^{ 1} } \\ \\ = > \frac{ {7}^{6} }{ {5}^{3} } = \frac{117649}{125}$