Question

1. (a^4 . b)^3 : a^8 = ......

2.(a^10 : a^6) : a^3 = ......

Answer 1

1)
= (a⁴ . b)³ : a^8
= a^(4×3) × b³ : a^8
= a^12 × b³ / a^8
= a^(12-8) × b³
= a⁴ × b³
= a⁴ . b³

2)
= (a^10 : a^6) : a^3
= [a^(10-6)] : a³
= a⁴ : a³
= a^(4-3)
= a¹
= a