作业帮(x+3)(x+7)(x-3)(x-7)+16化简
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/27 01:31:57
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(x+3)(x+7)(x-3)(x-7)+16化简
(x+3)(x+7)(x-3)(x-7)+16化简
(x+3)(x+7)(x-3)(x-7)+16化简
(x+3)(x+7)(x-3)(x-7)+16
=（x²-9)(x²-49)+16
=x^4-49x²-9x²+441+16
=x^4-58x²+457
原式=(x十3)(x-3)(x十7)(x-7)十16
=(x^2-9)(x^2-49)十16
=x^4-448十16
=x^4-432
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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
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
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
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?
3x·x-5x-122x·x·x-x·x-4x+3x·x·x-6x-5x·x+6x+64x·x+12x+7
如果3x*x-x=1那么9x*x*x*x+12x*x*x-3x*x-7x+2001等于多少
如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 x x x
解九宫格题目（X为未知数）9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
2x+3x+4x+5x+x+6x+7x=100
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
3x+7x=( )+( )X( )
7x-3x+x=60
(x-1)(x-3)(x-7)因式分解
化简：|x+3+|x-1|+|x+7|
(x+7)+x+3x=17