(1)2(4x-0.5) (2)-3(1-6/1x) (3)-x+(2x-2)-(3x+5)(4)3a²+a²-(2a²-2a)+(3a-a²) (5)(5a+4c+7b)+(5c-3b-6a)(6)(8xy-x²+y²)-(x²-y²+8xy) (7)(2x²-2

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(1)2(4x-0.5)(2)-3(1-6/1x)(3)-x+(2x-2)-(3x+5)(4)3a²+a²-(2a²-2a)+(3a-a²)(5)(5a+4c+

(1)2(4x-0.5) (2)-3(1-6/1x) (3)-x+(2x-2)-(3x+5)(4)3a²+a²-(2a²-2a)+(3a-a²) (5)(5a+4c+7b)+(5c-3b-6a)(6)(8xy-x²+y²)-(x²-y²+8xy) (7)(2x²-2
(1)2(4x-0.5) (2)-3(1-6/1x) (3)-x+(2x-2)-(3x+5)
(4)3a²+a²-(2a²-2a)+(3a-a²) (5)(5a+4c+7b)+(5c-3b-6a)
(6)(8xy-x²+y²)-(x²-y²+8xy) (7)(2x²-2/1+3x)-4(x-x²+2/1)
(8)3x²-[7x-(4x-3)-2x²]

(1)2(4x-0.5) (2)-3(1-6/1x) (3)-x+(2x-2)-(3x+5)(4)3a²+a²-(2a²-2a)+(3a-a²) (5)(5a+4c+7b)+(5c-3b-6a)(6)(8xy-x²+y²)-(x²-y²+8xy) (7)(2x²-2
(1)2(4x-0.5)=8x-1
(2)-3(1-6/1x)=-3+18/1x
(3)-x+(2x-2)-(3x+5)=-x+2x-2-3x-15=-2x-13
(4)3a²+a²-(2a²-2a)+(3a-a²)=4a²-2a²+2a+3a-a²=a²+5a
(5)(5a+4c+7b)+(5c-3b-6a)=-a+4b+c
(6)(8xy-x²+y²)-(x²-y²+8xy)=-2x²+2y²
(7)(2x²-2/1+3x)-4(x-x²+2/1)=2x²-2+3x-4x+4x²-8=6x²-x-10
(8)3x²-[7x-(4x-3)-2x²] =3x²-(3x+3-2x²)=5x²-3x-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 (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) (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 先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5 (X-3分之x-1-x分之x-4)除以x的平方+3x分之(x+3)(x-2),其中(x-1)(x-2)=0 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 1、lim(x->无穷大) e^x arctanx2、lim(x->0)sinx√1+sin(1/x)3、lim(x->无穷大)【(√x^2+x+1)-【(√x^2-x+1)】4、lim(x->无穷大)((x+{x+(x)^0.5]^0.5}^0.5)/(2x+1)^0.55、lim(x->0)(sin3x+x^2sin1/x)/((1+cosx)x)6、lim(n->无穷大)(2^n)(si (1)(2x/x-1)-(x-1/x)=1 (2)(x^2-4x/x^2-1)+1=2x/x+1 (3)(x+4/x^2+2x)-(1/x+2)=(2/x)+1 (1)(2x/x-1)-(x-1/x)=1 (2)(x^2-4x/x^2-1)+1=2x/x+1 (3)(x+4/x^2+2x)-(1/x+2)=(2/x)+1 x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算 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 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- [(2x+6)/(x^2-4x+4)]×[(x-2)/(x^2+3x)]-1/x-2化简! 2x-6/4-4x+x^2/(x+2)*x^2-4/3-x,其中x=-1 (x+2分之3x-x+2分之x)/x平方-4分之x(x-1)=4 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}