1.（x+1）（x+2）-x-102.（x2-2x（x2-2x-4）+43.x2-3xy-18y2-3x-9y2.(x2-2x）（x2-2x-4）+4

来源：学生作业帮助网编辑：作业帮时间：2024/04/27 03:25:04

1.（x+1）（x+2）-x-102.（x2-2x（x2-2x-4）+43.x2-3xy-18y2-3x-9y2.(x2-2x）（x2-2x-4）+4
1.（x+1）（x+2）-x-10
2.（x2-2x（x2-2x-4）+4
3.x2-3xy-18y2-3x-9y
2.(x2-2x）（x2-2x-4）+4

1.（x+1）（x+2）-x-102.（x2-2x（x2-2x-4）+43.x2-3xy-18y2-3x-9y2.(x2-2x）（x2-2x-4）+4
1.（x+1）（x+2）-x-10
=x^2+2x+x+2-x-10
=x^2+2x-8
=(x-2)(x+4)
2.（x2-2x（x2-2x-4）+4
你把题写清楚
3.x2-3xy-18y2-3x-9y
=x^2-3xy-18y^2-3(x+3y)
=(x-6y)(x+3y)-3(x+3y)
(x+3y)(x-6y-3)

1.（x+1）（x+2）-x-10=x^2+3x+2-x-10=x^2+2x-8=(x-2)(x+4)
2.（x^2-2x)（x^2-2x-4）+4=(x^2-2x)^2-4(x^2-2x)+4=(x^2-2x-2)^2
3. x^2-3xy-18y^2-3x-9y=(x-6y)(x+3y)-3(x+3y)=(x-6y-3)(x+3y)

（x+1）(x+2) - x - 10
= xx + 3x + 2 - x - 10
= xx + 2x - 8
= (x + 4) ( x - 2 )
（x^2-2x)（x^2-2x-4）+4=(x^2-2x)^2-4(x^2-2x)+4=(x^2-2x-2)^2
x2-3xy-18y2-3x-9y
=x^2-3xy-18y^2-3(x+3y)
=(x-6y)(x+3y)-3(x+3y)
(x+3y)(x-6y-3)

1.（x+1）（x+2）-x-10
=x^2+2x+x+2-x-10
=x^2+2x-8
=(x-2)(x+4)
2.（x2-2x（x2-2x-4）+4
题目不清楚，括号不对。。。
3.x2-3xy-18y2-3x-9y
=x^2-3xy-18y^2-3(x+3y)
=(x-6y)(x+3y)-3(x+3y)
(x+3y)(x-6y-3)

1、（x-2)(x+4)

300字读后感 2篇俄把格式说一下吧：《xxxx》（写题目）主要内容：x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容）思考分析：x x x 计算：（1+1/x）·x²-2x+1/x²-1；（x²/x-1-2x/1-x）÷x/x-1. 1.(1/X-1 )-2=X^-3X/X^-12.（X/X+1)^+5(X/X+1)+6=03.（8(X^+2X)/X^-1）+ 3（X^-1)/X^+2x 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 请问这道题咋做：（x）X (x+1) X (x+2) X (x+3) =360 1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/（x^2-5x+6）+（x^2-3x+8）/（x^2-4x+3）2.{(x^2)/（x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{（x^2/x^2+y^2）^2} 35道.符号^代表平方.读起来就是（X的平方）.1,x^-x-202,x^-9x+203,x^-9x-204,x^+9x+205,x^-18x+326,x^+14x-317,x^+18x+328,x^+14x-329,x^+19x+4810,x^+47x-4811,x^+13x-4812,x^+2x-4813,x^+26x+4814,x^-22x-4815,x^+17x+7216,x^+21x-10017,x^-x-7218,x 1.x^2/(x-2)-x-22.（1+2/x-(x+1)/(x-2)）/((x+4)/(x^2-2x))3.1/(1-x)+1/(1+x)+2/(1+x^2)+4/(1+x^4) 因式分解（x+x）-（x+x-1）-2 (x-1)^3(x+1)（x-2）/(x+4) x(x+1)(x+2)(x+3)+1 (换元法）计算 x(x+3)-(x-1)(x-2）化简：x(2x+1)-x(x-3）（x+2)(x-2)+16 (x-1)(x-2)+3x（x+3）-4（x+2)(x-3)（x+2)(x-2)+16 (x-1)(x-2)+3x（x+3）-4（x+2)(x-3) （x+1）(x+2) x^2（1-x）计算（x*x+4x+5）/（x+2）-（x*x+6x+10）/（x+3）+1 （x+1)(x+2)(x+3)(x+4）+1(x+1)(x-2)(x+3)(x-4)+25