Question

$x^{-8} *x^{10}$/$x^{4}$

Answer 1

$frac{ x^{-8}* x^{10} }{ x^{4} } =frac{ x^{10-8} }{ x^{4} } = frac{ x^{2} }{ x^{4} } = x^{2-4}= x^{-2}$