1.

Simplify the following : 2x^(2)+3y^(2)-5xy+5x^(2)-y^(2)+6xy-3x^(2)

Answer»

`7x^2+4y^2-11xy`
`7x^2+2y^2-30xy`
`4x^2+2y^2-11xy`
`4x^2+xy+2y^2`

ANSWER :D


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