Question

 Phân tích đa thức thành nhân tử x(x-2)-(2-x)y-2(x-2)=3

Answer 1

x(x-2)-y(2-x)-2(x-2)=3    

 x(x-2)+y(x-2)-2(x-2) =3

  (x-2)(x+y-2)=3  

Answer 2

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

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

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

Answer 3

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

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

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