Question

2x ( x² - 5xy + y² ) - 3x² + 10x² y

giúp ạ 

Answer 1

`2x(x^2-5xy+y^2)-3x^2+10x^2y`

`=2x^3-10x^2y+2xy^2-3x^2+10x^2y`

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

Answer 2

\(2x.\left(x^2-5xy+y^2\right)-3x^2+10x^2y\)

\(=2x^3-10x^2y+2xy^2-3x^2+10x^2y\)

\(=2x^3+2xy^2-3x^2\)