6x^2+5x-50=0
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6x^2+5x-50=0
6x^2+5x-50=0
6x^2+5x-50=0
x1=5/2,x2=-10/3
(x^-2x)^-5(x^-2x)-6=0
如果1+x+x^2+x^3=0,求x+x^2+X^3+x^4+x^5+x^6+x^7+x^8的值,
5(x的2次方+X-3)-4x(6+x)+x(-x+4)=0
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
若2x-3y+4=0则x(x*x-1)+x(5-x*x)-6y+7
5(x²+17)-6(x²+2x)=0 (50-x)(30+2x)=21005(x²+17)-6(x²+2x)=0(50-x)(30+2x)=2100
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解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x+3x+4x+5x+x+6x+7x=100
已知2x*x+x-5=0,求代数式6x*x*x+7x*x-13x+11的值
已知2{x*x}+x-5=0 求6{x*x*x}+7{x*x}-13x+11的值“*”这个符号是乘号
x-4x-5=0 x(x-2)=3x-6
解方程:(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0
x^2+5x-990=0,求x^3+6x^2-985x+2010
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
(3/x)+(6/x-1)+(x+5/x-x^2)=0
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
1.(x*2-3x+3)/(x*2-3x+2)-(x*2-5x+7)/(x*2-5x+6)-1/(x*2-4x+3)2.1/x(x+1)+2/(x+1)(x+3)+3/(x+3)(x+6) 3.已知:x*2-3x+1=0,求x*2+1/x*2.