(aˉ⁴)⁸= (a³)ˉ⁷ ∙ (aˉ⁴)ˉ⁵ ː (aˉ⁵)⁸= (a⁵bˉ³c⁴)ˉ¹⁰= (a²bˉ³)ˉ³ ∙ (aˉ⁴bˉ⁹)⁶=
A ^-32 a^-41 a^-50b^30c^-40 a^-30b^-45