Simplify (-0.9x^2 + 0.12xy-7.2y^2) -(-3.1x^2 -0.14xy + 6.5y^2)

Asked by AnneS2 on 15 Apr 03:09

Last updated by anonymous on 16 Apr 15:53

Answered by CherieS on 16 Apr 15:53

= (-0.9x2 + 0.12xy-7.2y2) -(-3.1x2 -0.14xy + 6.5y2)

= (-0.9x2 + 0.12xy-7.2y2)+3.1x2 +0.14xy - 6.5y2

=-0.9x2 + 0.12xy-7.2y2+3.1x2 +0.14xy - 6.5y2

=-0.9x2 +3.1x2 -7.2y2- 6.5y2 + 0.12xy+0.14xy

=2.2x2 -13.7y2 +.26xy