Question

giúp mình với ạ :

b)5x ³-5x ²y-10x ²+10xy

Answer 1

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

\(=5x^2\left(x-y\right)-10x\left(x-y\right)\)

\(=\left(x-y\right)\left(5x^2-10x\right)\)

\(=5x\left(x-y\right)\left(x-2\right)\)

 

 

Answer 2

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

\(=5x(x-2)(x-y)\)