x^3-18x^2+81x

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x^3-18x^2+81xx^3-18x^2+81xx^3-18x^2+81x9（p-q)^2-6(p-q)+1,=[3(p-q)-1}^2（x^2+1)^2-4X^2=x^4+2x^2+1-4x^2

x^3-18x^2+81x
x^3-18x^2+81x

x^3-18x^2+81x
9（p-q)^2-6(p-q)+1,
=[3(p-q)-1}^2
（x^2+1)^2-4X^2
=x^4+2x^2+1-4x^2
=X^4-2X^2+1
=(x^2-1)^2

x^3-18x^2+81x *-----------------------------------------------*| 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 解不等式组:2x-1>x+1,x+81-x,x+21+2x,3x+21,2x-1>x+1,x+81-x,x+23 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. x^3-18x^2+81x,怎么算? x(x-2)(x-3) {x|(x+3)(x-2) -x^3+x^2-x (x-3)(x+3)(x^4+9X^2+81) x+(x+3)+2x+(2x-18)=255 x×x+3x-9/ x+2 x+2x+3x+.+100x (x*x-3)*(x*x-3)-x*(x*x-3)-2x*x 因式分解 x^2-3x-18 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 数学化简3x-x^2/5x+4 x 18/4x-12(3x-x^2)/(5x+4) x 18/(4x-12)