(3x–4)(x+2)–(x+5)(x–3)

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(3x–4)(x+2)–(x+5)(x–3)

(3x–4)(x+2)–(x+5)(x–3)
(3x–4)(x+2)–(x+5)(x–3)

(3x–4)(x+2)–(x+5)(x–3)
原式=3x²+6x-4x-8-x²+3x-5x+15
=2x²+7

(3x–4)(x+2)–(x+5)(x–3) 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 计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1 300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 若f(x)=3x–x+1,g(x)=2x+x–1,则f(x)与g(x)的大小关系为? 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简 解下列方程!就三道!解下列方程.1、x/x-2 - 1-x²/x²-5x = 2x/x-3(x/x-2 - 1-x²不是一起的!)2、5x/x²+x-6 - 5-2x/x²-x-12=7x-10/x²-6x+8(5x/x²+x-6 - 5-2x不是一起的!)3、x-4/x-5 + x-8/x-9=x-7/x- (3x–4)(x+2)–(x+5)(x–3)求解 x+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2 *-----------------------------------------------*| 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 || 1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2} EXCEL两表间同时满足两个条件数据引用如题:表1为原始数据表1 2 3 4 5 6 7 8 9 10.A X X X X X X X X X XB X X X X X X X X X XC X X X X X X X X X XD X X X X X X X X X X .表2(A列) (B列) (C列)A 1A 3B 8B 5C 2D 3...... (x-1)^3(x+1)(x-2)/(x+4) (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) (8-7x-6x²+2x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3) x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28 (x+1)(x+2)(x+3)(x+4)+1(x+1)(x-2)(x+3)(x-4)+25 解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)