Question

cmr a mũ n trừ b mũ n chia het cho a trừ b

Answer 1

\(a^n-b^n⋮a-b\)

\(\Rightarrow\left(a-b\right)^n⋮a-b\)

\(\text{Mà }\left(a-b\right)⋮a-b\Rightarrow\left(a-b\right)^n⋮a-b\)

Hay \(a^n-b^n⋮a-b\)

Vậy : .........

Answer 2

chang ai lai lay a mũ n trừ b mu n =(a tru b(mu n