(1+40%)x=7 1-25%x=3/5 40%x+x/8=42 求解 要正确答案!
(-3x)+4=(-5x)+8 求解X
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
已知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
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
(3-x)/(1-x)-(5-x)/(7-x)+(x^2-x)/(x^2-8x+7)=1
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
求解方程1-x-2/3=1-x/5
求解方程(x-1)/(x²-5x+6)+(x-2)/(x²-4x+3)=(x-3)/(x²
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550