Simplify (xy^2+ 4x + 2y^2) + (4xy + 7x^2-10y^2) -(3y^2-3x^2-3xy)

Asked by AnneS2 on 15 Apr 03:07

Last updated by anonymous on 16 Apr 16:04

Answered by CherieS on 16 Apr 16:04

=(xy^2+ 4x + 2y^2) + (4xy + 7x^2-10y^2) -(3y^2-3x^2-3xy)

=(xy^2+ 4x + 2y^2) + (4xy + 7x^2-10y^2)-3y^2+3x^2+3xy

=xy^2+ 4x + 2y^2+4xy + 7x^2-10y^2-3y^2+3x^2+3xy

=xy^2 +4x +2y^2-10y^2-3y^2 +4xy+3xy +7x^2+3x^2

=xy^2 +4x -11y^2 +7xy +10x^2