(1)63Xˇ2+22X-8 (2)Xˇ2+x+6yˇ2+3y+5xy (3)Xˇ3(X-2y)+yˇ3(2x-y)因式分解
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(1)63Xˇ2+22X-8 (2)Xˇ2+x+6yˇ2+3y+5xy (3)Xˇ3(X-2y)+yˇ3(2x-y)因式分解
(1)63Xˇ2+22X-8 (2)Xˇ2+x+6yˇ2+3y+5xy (3)Xˇ3(X-2y)+yˇ3(2x-y)
因式分解
(1)63Xˇ2+22X-8 (2)Xˇ2+x+6yˇ2+3y+5xy (3)Xˇ3(X-2y)+yˇ3(2x-y)因式分解
(1)63Xˇ2+22X-8
=(7x+4)(9x-2)
(2)Xˇ2+x+6yˇ2+3y+5xy
=(x^2+5xy+6y^2)+(x+3y)
=(x+2y)(x+3y)+(x+3y)
=(x+2y+1)(x+3y)
(3)Xˇ3(X-2y)+yˇ3(2x-y)
=x^4-2x^3y+2xy^3-y^4
=(x^2-y^2)(x^2+y^2)-2xy(x^2-y^2)
=(x^2-y^2)(x^2-2xy+y^2)
=(x^2-y^2)(x-y)^2
=(x+y)(x-y)^3
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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
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
【(Xˇ2-X)/x】 ·【 x/(X+1)】+【(3x+1)】
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
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)63Xˇ2+22X-8 (2)Xˇ2+x+6yˇ2+3y+5xy (3)Xˇ3(X-2y)+yˇ3(2x-y)因式分解
分解因式:1、x^3-x^2-x-2 2、x^4-6x^2-7x-6 3、x^8+x+1 4、x分解因式:1、x^3-x^2-x-22、x^4-6x^2-7x-63、x^8+x+14、x^4+1/4y^45、18a^2-a^4-81
24道符号^表示平方1,x^+21x+202,x^-8x-203,x^+8x-204,x^-8x-335,x^-4x-326,x^-14x+337,x^+49x+488,x^-14x+489,x^-2x-4810,x^+22x-4811,x^-19x+4812,x^-16x+4813,x^+8x-4814,x^-29x+10015,x^+x-7216,x^+32x-3317,x^-21x-10018,x^+4x+319,x^-6x+520,x^+15x+2621,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
分解因式:x*x*x*x+2*x*x*x-9*x*x-2x+8
x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
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
(1-x)(1+x+xˇ2+...+xˇ98+xˇ99)
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
[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