2x的2次方+4xy-6ax+3a-x-2y 因式分解
问题描述：
2x的2次方+4xy-6ax+3a-x-2y 因式分解
答
(2x-1)(2x+2y-3a)
答
2x的2次方+4xy-6ax+3a-x-2y =2X（X+2Y)-3A(2X-1)-(X+2Y)=2X（X+2Y)-(X+2Y)-3A(2X-1)=(X+2Y)(2X-1)-3A(2X-1)=(X+2Y-3A)(2X-1)
答
2x的2次方+4xy-6ax+3a-x-2y
＝（2x^2-x）+(4xy-2y)-(6ax-3a)
=2x(2x-1)+2y(2x-1)-6a(2x-1)
=(2x+2y-6a)(2x-1)
=2(x+y-3a)(2x-1)