2x-14 /28 +x /35 -(x 28 +2x-14 /35 )=12/ 602x-14/28 +x/35 -(x/28 +2x-14 /35 )=12/ 60

35道.符号^代表平方.读起来就是（X的平方）.1,x^-x-202,x^-9x+203,x^-9x-204,x^+9x+205,x^-18x+326,x^+14x-317,x^+18x+328,x^+14x-329,x^+19x+4810,x^+47x-4811,x^+13x-4812,x^+2x-4813,x^+26x+4814,x^-22x-4815,x^+17x+7216,x^+21x-10017,x^-x-7218,x 300字读后感 2篇 俄把格式说一下吧：《xxxx》（写题目）主要内容：x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容）思考分析：x x x (2/5X-28)+(4/9X+14)=X -14x^3-21x^2+28x (x^3)^()*x^2=x^14 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 2x-14 /28 +x /35 -(x 28 +2x-14 /35 )=12/ 602x-14/28 +x/35 -(x/28 +2x-14 /35 )=12/ 60 分解因式：x*x*x*x+2*x*x*x-9*x*x-2x+8 x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x) 5x+7X[14-X]=28?X是什么? 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x x/28+(2x-14)/35+0.2=x/35+(2x-14)/28 解这个方程,每一步都要写, x/28+（2x-14/35）=x/35+2x-14/28+12 解得多少 x/28+(2x-14)/35+12/50=(2x-14)/28+x/35 解方程 快 [X/35+(2X-14)/28]-[X/28+(2X-14)/35]=1/5解这个方程 x/28+(2x-14)/35+1/5=（2x-14）/28+x/35（解方程）快点 (x^2+x)^2-14(x^2+x)+24 x^2-14x+49