2(3x+4)-5(-3x-2)=
6x-(4x+3)*3-2x2 =
(x+7)(2x-3=
(2x-3)(3x-4) +(-x+3)(2x+5=
6x2-(x+4) (2x-3) =
-6x2-(5x2-6x(2x-3)) -(4x+2)(x-5) =