Question

P/t đa thức thành nhân tử
2x^3-3x^2+2x-1

Answer 1

`2x^3-3x^2+2x-1`

`=2x^3-2x^2-x^2+x+x-1`

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

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

Answer 2

\(2x^3-3x^2+2x-1\)

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

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