(x-1)5+5(x-1)4+10(x-1)3+10(x-1)2+5(x-1)等于( )
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(x-1)/x -(1-x)/(x+1)=(5x-5)/(2x+2) x等于多少
因式分解10x^2+5x是等于5x(2x+1)吗
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
1+x/3大于等于5-(x+10/2)
化简 x(x-1)+2x(x+1)-3x(2x-5)
3/x-1=4/x 6/x+1=x+5/x(x+1)
x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙
为什么(x²+5x)²+10(x²+5x)+24等于(x²+5x+4)(x
(3X+2)平方等于(3X-1)(5X+2)-X