simplify the following bionomials (2x-3y) (3x+y) + (x+2y) (x-y)
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(2x-3y)(3x+y)+(x+2y)(x-y)
2x(3x+y)-3y(3x+y)+x(x-y)+2y(x-y)
6x^2+2xy-9xy-3y^2+x^2-xy+2xy-2y^2
6x^2+2xy-9xy-xy+2xy-3y^2-2y^2+x^2
6x^2-7xy+xy-5y^2+x^2
6x^2-6xy-5y^2+x^2
2x(3x+y)-3y(3x+y)+x(x-y)+2y(x-y)
6x^2+2xy-9xy-3y^2+x^2-xy+2xy-2y^2
6x^2+2xy-9xy-xy+2xy-3y^2-2y^2+x^2
6x^2-7xy+xy-5y^2+x^2
6x^2-6xy-5y^2+x^2
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