(2X+3)(X-4)-2(X+2)(X-3)
(2X+3)(X-4)-2(X+2)(X-3)
(2X+3)(X-4)-2(X+2)(X-3)
(2X+3)(X-4)-2(X+2)(X-3)
=2x-8x+3x-12-2x+6x-4x+12,=-3x
(x-4)(2x+3)-(x+2)(x-3)
=(2x²-5x-12)-(x²-x-6)
=x²-4x-6
如果满意请点击右上角评价点【满意】即可~~
你的采纳是我前进的动力~~
答题不易..祝你开心~(*^__^*) 嘻嘻……
-3x
8
-3x
原式=(2x²-8x+3x-12)-2(x²-3x+2x-6)
=2x²-5x-12-2x²+x+12
=-4x
-3X
-3x
-3x
化简得—3x要有过程