(2x-1)(2x+1)-3(x+2)(x-2)=(x+1)(x-2)+12数学题,
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
数学题已知x+1/x=10,则x^2+(1/x^2)等于多少
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
计算 x(x+3)-(x-1)(x-2)
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(2x-1)(2x+1)-3(x+2)(x-2)=(x+1)(x-2)+12数学题,
化简 x(x-1)+2x(x+1)-3x(2x-5)
x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙
(x)-2x·x-x-2x+1=0求x的值,