Question

Phân tích đa thức thành nhân tử

a⁵ +a⁴+a³+a²+a+1

Answer 1

\(a^5+a^4+a^3+a^2+a+1=a^4\left(a+1\right)+a^2\left(a+1\right)+\left(a+1\right)\)

\(=\left(a^4+a^2+1\right)\left(a+1\right)\)

Answer 2

\(a^5+a^4+a^3+a^2+a+1=a^4\left(a+1\right)+a^2\left(a+1\right)+\left(a+1\right)\)

\(=\left(a^4+a^2+1\right)\left(a+1\right)\)