Question

`x^5 + x^4 +x^3 +x^2 +x+1`

phân tích thành nhân tử

Answer 1

=x^3(x^2+x+1)+(x^2+x+1)

=(x^2+x+1)(x^3+1)

=(x^2+x+1)(x+1)(x^2-x+1)

Answer 2

\(x^5+x^4+x^3+x^2+x+1\)

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

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

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

#Toru