Question

(x^-4)^5 please simplify the expression

Answer 1

$(x ^{-4} )^{5}$

Apply exponent rule :

$(a^b)^c = a^ ^{b.c}$

$=x ^{(-4)*5}$

$(-4)*5$

$= - 20$

Apply exponent  rule :

$a ^{-b} = \frac{1}{a^b}$

$= \frac{1}{x ^{20} }$

hope this helps!