Jawabanmu

2014-09-13T13:47:27+07:00
(x-y)(2x+3y)
= 2x²+3xy-2xy-3y²
= 2x²+xy-3y²
2014-09-13T13:56:03+07:00
(x-y)(2x+3y)
=2x²+3xy-2xy-3y²
= 2x²+xy-3y²