\(\left(x^2-2xy+y^2\right)\left(x-y\right)\)
\(=\left(x-y\right)^2\left(x-y\right)\)
\(=\left(x-y\right)^3\)
\(=x^3-3x^2y+3xy^2-y^3\)
\(\left(x^2-2xy+y^2\right)\left(x-y\right)\)
\(=\left(x-y\right)^2\left(x-y\right)=\left(x-y\right)^3\)
Chúc bạn học tốt!!!
\(\left(x^2-2xy+y^2\right)\left(x-y\right)\\ =\left(x-y\right)^2\cdot\left(x-y\right)\\ =\left(x-y\right)^3\)