若2<x<5,则化简|x-5|+|x-2|得_________________.
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若2<x<5,则化简|x-5|+|x-2|得_________________.
若2<x<5,则化简|x-5|+|x-2|得_________________.
若2<x<5,则化简|x-5|+|x-2|得_________________.
x-50,所以去掉绝对值是x-2,则化简最后就是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 ||
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(9x-5)-5<3x(3x-2)+3(x-1)
求函数f(x)=(x+5)(x+2)/(x+1),(x<-1)的最大值
若2<x<5,则化简|x-5|+|x-2|得_________________.
(x-5)(x-2)
(x-5)(x+2)
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