(X-2)*180/X:(2X-1*)180/2X=3:4

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(X-2)*180/X:(2X-1*)180/2X=3:4
(X-2)*180/X:(2X-1*)180/2X=3:4

(X-2)*180/X:(2X-1*)180/2X=3:4
(X-2)*180/X:(2X-1*)180/2X=3:4
4*(X-2)*180/X=3*(2X-1*)180/2X
8*(X-2)=3*(2X-1)
8X-16=6X-3
2X=13
X=13/2

解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 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 因式分解(x+x)-(x+x-1)-2 (x-1)^3(x+1)(x-2)/(x+4) x(x+1)(x+2)(x+3)+1 (换元法) 计算 x(x+3)-(x-1)(x-2) 化简:x(2x+1)-x(x-3) (x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3)(x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3) (x+1)(x+2) x^2(1-x) (x+1)(x+2)(x+3)(x+4)+1(x+1)(x-2)(x+3)(x-4)+25 计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1 计算:(x+2/x^2-2x-x-1/x^2-4x+4)×x/4-x (x+2/x^2-2x-x-1/x^2-4x+4)/x-4/x因式分解 *-----------------------------------------------*| 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 || 化简[(x+2)/(x²-2x)+(x-1)/(x²-4x+4)]除以(x-4)/x