Question

$\frac{ {5}^{ - 28} }{ {5}^{ - 32} }$

Answer 1

$5 {}^{ - 28} { }^{ - ( - 32)} \\ - 28 + 32 = 4 \\ 5 {}^{4} = 625$

Answer 2

$\frac{ {5}^{ - 28} }{ {5}^{ - 32} } = {5}^{ - 28 - ( - 32)} = {5}^{ - 28 + 32} = {5}^{4} = 625$