(1—1/4)x(1+2/9)xX=360—X+1/4X
小数奥数网xx(x +1)x(x+ 2)x(x +3)=360怎样算?
解方程1/(xx+x)+1/(xx+3x+2)+1/(xx+5x+6)+1/(xx+7x+12)+1/(xx+9x+20
题目是 (1) XX*X=XX X*X=XX X为未知数分别将1到9的9个数填入不能重复 *为乘号 (2)XX/X=X
5x-1=4x 求XX=多少
已知:3x=xx-x+1求(xxxx+xx+1)分之xx
一道平方差公式的题:3x(x+2)+(x+1)(x-1)=4(xx+2)
解决数独问题x 1 x 7 x x x 3 xx x x x 4 x 2 x x9 x 3 6 x 8 7 x 58 x
函数f(x)=xx+1
已知x/(xx+x+1)=a,求xx/(xxxx+xx+1)的值
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
xxx+xx+x+1求x^ 2008
已知XX+X+1=0,求XXX+2XX+2X+3的值