3^X-1>0 X怎么算

3^X-1>0 X怎么算 (x+2)(x+3)-(x+6)(x-1) 怎么算? lim(x→0)[（3x+1)/(4x-2)]^1/x 这道题怎么算极限 (x-1)(x-2)(x-3)(x-4)-(x^2-5x)^2-10(x^2-5x)怎么算? 1-x/1+x>0怎么算?) ｜x-3|-|x+1|>3怎么算 (x-3)(x-1)怎么算 (1+x)(x-3)>0怎么解 X－3X＋1＝0 怎么算? x²-3x-1=0怎么算 4X^3-4X+1=0 怎么算 x(x+4)(3-x)>0的解集是?怎么算 x(x-2)+m(1-x)=3怎么算 y+(1+x)(2+x)(3+x)导数怎么算, (X-3)/(X^2-4)*(X^2-4X+4)/(x^2-x-6)-1/(x+2)怎么算?(X-3)/(X^2-4)*(X^2-4X+4)/(x^2-x-6)-1/(x+2),怎么算? (100-x)*3*(1 2x%)300怎么算怎么把(100-x)*3*(1 2x%)＝300化成x^2-50x=0 1+x+x^2+x^3+.+x^99+x^100同上,怎么算?求解! (x^10-x^5+1)/(x^2+x+1) 怎么算?(x^10-x^5+1)/(x^2+x+1)=（x^8-x^7+x^5-x^4+x^3-x+1)