Question

Simplify the following. (x+2y) (-3x-y)-(x+y) (x-y)+(x-2y) (-2x+y)

Answer 1

-3x^2-xy-6xy-2y^2-x-y-2x^2+xy+4xy-2y^2=
-5x^2-2xy-x-y-4y^2
i hope this will help u