(x+4)(x-3)-(x-2)(2+x)-4=0怎么做?
4+6X(3x-2)=16x 怎么解方程?注备:X=乘 x=x
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
2X+4X(20—X)=44怎么做?
3+2分之1x=4x和3x—2(5x—4)=2+(5—6)x怎么做
limx趋于0(x^3-5x^4)/(x+x^2)极限怎么求
(2x*10+x)-(10x+2x)=36怎么做?求求你了,
(2x²-3x+1)²-22x+33x-1怎么做?
x(x-14)二0*x平方十|2x十27=0,x平方=x+56,x(5x+4)=5x+4,4x平方-45=3|x,-3x
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
(先化简后求值)(3x/x+2-x/x-2)+2x/x^2-4,x=4-根号5,