深圳市大族电机:4x^2+4x-(11/25)=0
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过程``快``谢谢`
x^2+x-0.11=0
(x-0.1)(x+1.1)=0
x1=0.1,x2=-1.1
4x^2+4x-(11/25)=0
x^11x^18/[-x(-x^2)^3]^4==???
11*(6-x)/3*(x-4)=10*(5-x)/3*(x-4)-5(6-x)/(x-2) 求x.
谁会解这道题:(X-5)/(X-7)+(X-2)/(X-4)=(X-3)/(X-5)+(X-4)/(X-6)求X的值
已知x+1/x =4,则x^2/x^4+x^2+1
(x-4)(x-2)-(x-1)(x+3),其中x=-2/5
解方程(x+1)(x+2)(x+3)(x+4)=(x+1)(x+1)+(x+2)(x+2)+(x+3)(x+3)+(x+4)(x+4)
(x+1)(x+2)(x+3)(x+4)=(x+1)(x+1)+(x+2)(x+2)+(x+3)(x+3)+(x+4)(x+4)
(4/x-2)+(x+2/2-x)=?
x^2/x-2+4/2-x =?