2x-4,x^2+x-6,3x^2-12的最简公分母是
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2x-4,x^2+x-6,3x^2-12的最简公分母是2x-4,x^2+x-6,3x^2-12的最简公分母是2x-4,x^2+x-6,3x^2-12的最简公分母是2*(x-2)(x-2)*(x+3)3
2x-4,x^2+x-6,3x^2-12的最简公分母是
2x-4,x^2+x-6,3x^2-12的最简公分母是
2x-4,x^2+x-6,3x^2-12的最简公分母是
2*(x-2)
(x-2)*(x+3)
3*(x-2)*(x+2)
所以是(x-2)
x-2
2(x-2),(x-2)(x+3),3(x+2)(x-2)
*-----------------------------------------------*| 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(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
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
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)
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
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了 想不起来怎么算了 想知道 X值是多少
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
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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(2x-6)/(4-4x+x^2)/(x+3)*(x^2+x-6)/(3-x)
计算:[(x^2 - 4)/(x^2 - x - 6) + (x+2)/(x-3)] / (x+1)/(x-3)
(x-1)/(x+3x+2)+6/(2+x-x)-(10-x)/(4-x)
2x+3x+4x+5x+x+6x+7x=100
通分:x+4/x^2-8x+15,x-5/x^2+x-12,x-3/x^2-x-20
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
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