化简[√(2x-7)]`2-2√(4-4x+x`2)+|x-3|

*-----------------------------------------------*| 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 || 化简[√(2x-7)]`2-2√(4-4x+x`2)+|x-3| x^2+√(2x^2-x-4)=1/2*(x+7) 求x 化简√4-4x+x².(x＞2) 化简:2√(9x)/3+6√(x/4)-2x√(1/x) 化简:2√(9x)/3+6√(x/4)-2x√(1/x) （6√x/4－2x√1/x）÷3√x 化简 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1 当-3≤x≤2化简 √x^2+8x+16 -√x^2-6x+9+√x^2-4x+4 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 化简：[(x+2)/x-(x-1)/(x-2)]/[(x-4)/(x^2-4x+4)] 已知：-2小于x小于3.化简√（x^2+4x+4)-√(x^2-6x+9） 难倒爱因斯坦的九宫格X 7 X | X 8 1 | X X X |X X X | X 4 X | 7 5 9 |X X 5 | 7 X 9 | X 1 4 |5 X X | X X 8 | 3 9 X |3 9 6 | 4 X 7 | X X 2 |X 8 7 | 9 X X | X X X |4 X X | 6 X 5 | X X X | X X 4 | X X 1 |2 X X | X X X | X X X | X 3 X | X X X |X 6 已知x大于0小于1,化简√（x-1/x)^2+4 -√（x+1/x)^2-4 已知0＜x＜1,化简√{[x-(1/x)]^2+4}-√{[x+(1/x)]^2-4} [x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简 若二次根式√-2x+6有意义,化简｜x-4｜-｜7-x｜