Question

Phân tích thành nhân tử 2x²-6x+xy-3y

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Answer 1

= 2x(x-3) + y (x-3)

= (2x+y)(x-3)

Answer 2

\(2x^2-6x+xy-3y=\left(2x^2-6x\right)+\left(xy-3y\right)=2x\left(x-3\right)+y\left(x-3\right)=\left(x-3\right)\left(2x+y\right)\)

Answer 3

\(\left(2x^2-6x\right)+\left(xy-3y\right)=2x\left(x-3\right)+y\left(x-3\right)=\left(x-3\right)\left(2x+y\right)\)

Answer 4

\(=2x\left(x-3\right)+y\left(x-3\right)=\left(x-3\right)\left(2x+y\right)\)