Factarise this sum (x+y)(3a-b)-(2x-3y)(3a-b)
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(x+y)(3a-b). =. 3ax - bx +3ay - by
(2x-3y)(3a-b)=. 6ax - 2bx - 9ay + 3by
(x+y)(3a-b)-(2x-3y)(3a-b)
=3ax - bx +3ay - by-6ax - 2bx - 9ay + 3by
= -3ax - 3bx - 6ay + 2by
i hope it will help you
(2x-3y)(3a-b)=. 6ax - 2bx - 9ay + 3by
(x+y)(3a-b)-(2x-3y)(3a-b)
=3ax - bx +3ay - by-6ax - 2bx - 9ay + 3by
= -3ax - 3bx - 6ay + 2by
i hope it will help you
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