Question

помогите пж, пж, пж. Срочно​

Answer 1

${5}^{2 - x } = frac{1}{25}$

$frac{ {5}^{2} }{ {5}^{x} } = frac{1}{25}$

${5}^{2 } times 25 = {5}^{x}$

625=5х

х=4

Answer 2

спасибо большое