Question

phân tích đa thức thành hân tử 

4x(x-y)+3(y-x)²

 

Answer 1

\(4x\left(x-y\right)+3\left(y-x\right)^2=4x\left(x-y\right)+3\left(x-y\right)^2\)

\(=\left(x-y\right)\left[4x+3\left(x-y\right)\right]=\left(x-y\right)\left(7x-3y\right)\)

Answer 2

Answer 3

Ta có: \(4x\left(x-y\right)+3\left(y-x\right)^2\)

\(=4x\left(x-y\right)+3\left(x-y\right)^2\)

\(=\left(x-y\right)\left(4x+3x-3y\right)\)

\(=\left(x-y\right)\left(7x-3y\right)\)