1.5x+(x+5)÷3＞0

(x-2)(x-3)/(x+5)(x-7)＞0(x-2)(x-3)(x+2)(x+3)＞0 1.5x+(x+5)÷3＞0 |x-5|-|x+6|+|x-3|>0 若x满足1-7x＜3-5x,-3x＞0 化简代数式|x|-|x+1| 1.5x²-3x=142.3x²-7x-8=03.7x²-4x=04.2x²-5x-8=0 两道有关符号问题题目｜x=2｜+｜x-3｜ x+2=0 x=-2 x-3=0 x=3x＜-2-x-2-x-3=-2x=1x＞3x+2+x-3=2x-1-2≤x≤3x=2-x+3=5｜x-1｜+｜x+1｜ x-1=0 x=1 x+1=0 x=-1 x≤-1-x+1-x+1=2-2xx＞1x-1+x+1=2x-1＜x≤11-x+x+1=2两道题目都是零点 *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || （x+2）(x+3)=x²+5x+6得能被——整除,且当x=——时,x²+5x+6=0；因为（x-2）(x+3)=x²+x-6,所以（x²+x-6）÷（x-2）=x+3,即x²+x-6能被x-2整除，所以x-2是x²的一个因式，且当x=2时，x²+x- 化简：2|x| -3x÷|2x-|5x|| 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 几道解不等式|x+1|＞x|x-1|+|x-2|=7(X^2-2x+1)(x+1)^3(2-x)/[(X+4)(X^2-4x+5)]>=0 X×X－3X＋1=0求分式X×X÷〈X×X×X×X+3X×X+1〉 如果1+x+x^2+x^3=0,求x+x^2+X^3+x^4+x^5+x^6+x^7+x^8的值, X^2-3X-2=0,求( x - 2x-1/x )÷(x-1)/(x^2-2x) 解不等式[（x*x+1)(x-5)+5-x(x-3)(x+1)]/(x-3)(x+1)>=0 0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=6（x+1.2)=18.6 x= 7x+2x = 8.1 x= (x-5）÷3=1.7 x=5（x+1.1)=15.5 x= 9x+25=70 x= 7x-4x=2.1 x= 不等式|(x+3)/x|>(x+3)/x,不等式（x²-9）/(x-2)＞0 先化简,再求值:[(3x+4/x²-1)-2/x-1]÷(x+2/x²-2x+1),其中x是不等式组x+4＞0 2x+5＜1的整数解其中x是不等式组x+4＞02x+5＜1的整数解