(x-2)(x-3)+2(x+6)(x-5)-3(x²-7x+13)化简过程仔细。。谢谢！！
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(x-2)(x-3)+2(x+6)(x-5)-3(x²-7x+13)化简过程仔细。。谢谢！！(x-2)(x-3)+2(x+6)(x-5)-3(x²-7x+13)化简过程仔细。。谢谢
(x-2)(x-3)+2(x+6)(x-5)-3(x²-7x+13)化简过程仔细。。谢谢！！
(x-2)(x-3)+2(x+6)(x-5)-3(x²-7x+13)化简
过程仔细。。谢谢！！
(x-2)(x-3)+2(x+6)(x-5)-3(x²-7x+13)化简过程仔细。。谢谢！！
原式=x²-5x+6+2(x²+x-30)-3(x²-7x+13)
=x²-5x+6+2x²+2x-60-3x²+21x-39
=18x-93
javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6;function A(){ for(i=0; i-DIL; i ){ DIS=DI[i].style; DIS.
晕！逐步分解，把每组小式子外的括号去掉，然后该加的价该减的减，很简单的一道题啊，最后得出的结果是18Χ－93，小妹妹，自己要学会多多思考啊
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