2.7x-2.3(10-x)=4x-16
2.7x减2.3(10减x)=4x减16
解以下方程: (1)5x-34.3=1.7-3x (2)2.7x-2.3(10-x=4x-16)
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
(x-2)/(x+2)-16/(x^2-4)=(x+2)/(x-2)
4+6X(3x-2)=16x 怎么解方程?注备:X=乘 x=x
解方程:2x(x-2)-6x(x-1)=4x(1-x)+16.
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),
计算:1/(x^2-7x+10)+1/(x^2-x-2)+1/(x^2+5x+4)+1/(x^2+11x+28)=( )
(x+1分之x+6)-(x^+3x+2分之3x^+10x+4)+(x+2分之2x+1)=0,解这个方程
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1