(1-x)(1+10%)=1-12%
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
如果3x*x-x=1那么9x*x*x*x+12x*x*x-3x*x-7x+2001等于多少
x*x+2x+x*x+10x+x*x+25+2x+x*x+1+1+16+x*x+4x*x+9-12x+16x*x+4-1
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
解方程:x(x-1)/1+x(x+1)/1…+(x+9)(x+10)/1=11?12
x/2+x/8+x/12+x/20=1
解一元二次方程 3x²=10x+83x²-10x+3=0(x+8)(x+1)=-12(x+1)(2x
x-1=3x+3 x-3=12-4x 6x-14=5x-10 x+1=2-4x
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
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),
解方程:2x(x-1)-x(3x+2)=-x(x+2)-12
x/2+x/6+x/12+x/20+x/30+x/42=1