2,5,x,26,37,50,65.x是多少

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2,5,x,26,37,50,65.x是多少
2,5,x,26,37,50,65.x是多少

2,5,x,26,37,50,65.x是多少
x应该是两个数吧?10, 17
规律应该是n*n+1,
2=1*1+1
5=2*2+1
10=3*3+1
17=4*4+1
26=5*5+1

题错了吧 lz
是不是2,5,10,x,26,37,50,65......?
如果是答案就是17
前一个数与后一个数的差依次是3,5,7,9,11,13,15.....

2,5,x,26,37,50,65.x是多少 =(x^2-5x+4)(x^2-5x+6) =(x^2-5x)^2+10(x^2-5x)+24 是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24不好意思我弄错了,是=(x^2-5 =(x^2-5x)^2+10(x^2-5x)+24 =x^4-10x^3+25x^2+10x^2-50x+24 这是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24 七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式:X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X. 解决数独问题x 1 x 7 x x x 3 xx x x x 4 x 2 x x9 x 3 6 x 8 7 x 58 x x x x 9 x x xx x 2 x 5 x x x 4x 3 x x x x 6 x xx x x x x x x x 26 x x x x x x x 7x 5 4 1 7 x 9 8 x这道题我用了很多办法都没有头绪,请帮忙的朋友把解题的思 *-----------------------------------------------*| 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 || f(x)=2|x-1|+|x-2|+|x-5|+|x-8|+|x-34|,f(x)的最小值是____. 求解2X*X-6X=5X-15在线等 还有是x*x-7x+12 9-3x-4x=4 27+5x-7x=3 7x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x 19.5-2x=27-5x 21+4x-x=369-3x-4x=427+5x-7x=37x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x19.5-2x=27-5x 21+4x-x=36 9-3x-4x=4 27+5x-7x=3 7x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x 19.5-2x=27-5x 21+4x-x=369-3x-4x=427+5x-7x=37x-9x+26=10 10+x=4+2x 26.6-3x=29.9-6x 14.6+3x=18.8+x19.5-2x=27-5x 21+4x-x=36 (X-5)(X+3)+(X-2)(X+4)=26 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 3x+2X(10-x)=26 是 (x-2)(x-5)(x-6)(x-15)+8x^2 ^2是平方 观察:-x,3x^2,-5x^3,7x^4,...,-37x^19,39x^20,第n个式子是? (x^2-1/3x+4-x-1/2)/(x^2-2x+1/x+2),x是不等式组x+4>0,2x+5 分式x²+3x+2/x-1,x²-x-6/x+5,x²-2x-3/x-7的分母的最简公分母是 已知2{x*x}+x-5=0 求6{x*x*x}+7{x*x}-13x+11的值“*”这个符号是乘号