Question

(aˉ⁴)⁸=
(a³)ˉ⁷ ∙ (aˉ⁴)ˉ⁵ ː (aˉ⁵)⁸=
(a⁵bˉ³c⁴)ˉ¹⁰=
(a²bˉ³)ˉ³ ∙ (aˉ⁴bˉ⁹)⁶=

Answer 1

(aˉ⁴)⁸= а⁻³²

(a³)ˉ⁷ ∙ (aˉ⁴)ˉ⁵ ː (aˉ⁵)⁸=  а⁻²¹ * а²⁰ : а⁻⁴⁰ = а⁻¹  : а⁻⁴⁰ = а³⁹

(a⁵bˉ³c⁴)ˉ¹⁰= а⁻⁵⁰ * b³⁰ * с⁻⁴⁰

(a²bˉ³)ˉ³ ∙ (aˉ⁴bˉ⁹)⁶= а⁻⁶ * b⁹ * a⁻²⁴ * b⁻⁵⁴ = a⁻³⁰ * b⁻⁴⁵