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

Question

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

Answer 1

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