1/40)*4*x+(1/40)*8*(x+2)=1
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1/40)*4*x+(1/40)*8*(x+2)=1
1/40)*4*x+(1/40)*8*(x+2)=1
1/40)*4*x+(1/40)*8*(x+2)=1
(1/40)*4*x+(1/40)*8*(x+2)=1
4x+8(x+2)=40
12x=24
x=2
(1/40)*4*x+(1/40)*8*(x+2)=1
(1/40)*[4X+8*(x+2)]=1
(1/40))(12x+16)=1
12x+16=40
12x=24
x=2
1/10)x+1/5(x+2)=1
x+2(x+2)=10
3x+4=10
x=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
60%x+25=40 x+30%x=52 19-120%x=7 4分之3x-5%x=17.5 x-10%x=18 (1-25%)x=36 2x+30%x=9.2
1/4x+5+1/2【x-(1/4x+5)】-5+40=x
(x+1)(x+2)(x-4)(x-5)=40
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-
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
x除55%=100 60%x=30 x+50%x=4.5 (1-25%)x=72 4x+40%x=176 解方程
① (x-5)/8+40=(x-5)/6② x+(3x+1)+(x/2 -1)=180
帮我用分解因式解下列方程吧~(2x+1)的平方=4(2x+1) 2(x+3)的平方=x平方-9 x平方+4根号3x=-124(x+3)的平方-9x的平方=0x的平方+8x+12=0x平方+6x-40=0x平方-7x-44=0(x+1)(x-8)=-20
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}
(8+2x)(6+2x)=80怎么解求每一步过程 最佳答案 (4+X)(3+X)=20X^2+7X-8=0(X+8)(X-1)=0 得到x=1或x=-8这题左边应该是(4+X)(3+X)=40不是吗?
x/(x+1) + (x+2)/(x-2) = 8/(x²-4)
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......
通分:(1)2/x^2+x-2,1/x^2-2x-8(2)x/x^2-3x-4,1/x^2-8x+16
3X+(X+2)+(X+1)*(X-1)=4*(X²+8)
*-----------------------------------------------*| 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 ||
(8-7x-6x²+2x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3)
(x^24 x^23 x^22 …… x)÷(x^8+1)×(x^3+x^2-x-1)÷(x-1)÷(x^4+1)求值(x^24+x^23+x^22+……+x+1)÷(x^8+1)×(x^3+x^2-x-1)÷(x-1)÷(x^4+1)