(5a-2b)-(4а-3b)+2a 3x(x-3)-5x(x+3) (x-6)(x² -1)

Question

(5a-2b)-(4а-3b)+2a
3x(x-3)-5x(x+3)
(x-6)(x² -1)

Answer 1

3х2-9х-5х2-15х=-2х2-24х=-2х*(х+12) (х3-х)-(6х2+6)=х*(х2-1)*6*(х2-1)=(х-6)*(х2-1)