x^6-x^5 4ab-2b 12s^2t-20st^2 2a^4-6a^3-2a^2 1/2m^3+2mn^3 3a(x-y)-6b(y-x) -4a^2b-6ab^2+8ab5(m+n)^2-4m-4n 求分解因式

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/23 00:30:31
x^6-x^54ab-2b12s^2t-20st^22a^4-6a^3-2a^21/2m^3+2mn^33a(x-y)-6b(y-x)-4a^2b-6ab^2+8ab5(m+n)^2-4m-4n求分解

x^6-x^5 4ab-2b 12s^2t-20st^2 2a^4-6a^3-2a^2 1/2m^3+2mn^3 3a(x-y)-6b(y-x) -4a^2b-6ab^2+8ab5(m+n)^2-4m-4n 求分解因式
x^6-x^5 4ab-2b 12s^2t-20st^2 2a^4-6a^3-2a^2 1/2m^3+2mn^3 3a(x-y)-6b(y-x) -4a^2b-6ab^2+8ab
5(m+n)^2-4m-4n 求分解因式

x^6-x^5 4ab-2b 12s^2t-20st^2 2a^4-6a^3-2a^2 1/2m^3+2mn^3 3a(x-y)-6b(y-x) -4a^2b-6ab^2+8ab5(m+n)^2-4m-4n 求分解因式
x^6-x^5=x^5(x-1)
4ab-2b =2b(2a-1)
12s^2t-20st^2 =4st(3s-5t)
2a^4-6a^3-2a^2 =2a^2(a^2-3a-1)
1/2m^3+2mn^3=1/2m(m^2+4n^3)
3a(x-y)-6b(y-x) =3a(x-y)+6b(x-y)=3(x-y)(a+2b)
-4a^2b-6ab^2+8ab=-2ab(2a+3b-4)
5(m+n)^2-4m-4n =5(m+n)^2-4(m+n)=(m+n)(5m+5n-4)

x^6-x^5 =x^5(x-1)

4ab-2b =2b(2a-1)

12s^2t-20st^2 =4st(3s-5t)

2a^4-6a^3-2a^2 =2a²(a²-3a-1)

1/2m^3+2mn^3 =1/2m(m²+4n³)

3a(x-y)-6b(y-...

全部展开

x^6-x^5 =x^5(x-1)

4ab-2b =2b(2a-1)

12s^2t-20st^2 =4st(3s-5t)

2a^4-6a^3-2a^2 =2a²(a²-3a-1)

1/2m^3+2mn^3 =1/2m(m²+4n³)

3a(x-y)-6b(y-x) =3a(x-y)+6b(x-y)=3(x-y)(a+2b)

-4a^2b-6ab^2+8ab=-2ab(2a+3b-4)


5(m+n)^2-4m-4n =5(m+n)²-4(m+n)=(m+n)(5m+5n-4)

收起

若有定义:struct ab { int a,b,c;}x[]={{1,2,3},{4,5,6}}; 表达式x[0].b+s[1].c的 七下浙教版数学书130页作业题2、3、4、5、6急啊,今天就要1.(-14s²)÷(8s) 3a^5b^3c除以(-12a²b) (-4a^3b^2+8ab^3)÷(4ab^2) (5x^3+2x62+6x)÷(3x)。。。。。。。。。。。。。。。。。。 x^6-x^5 4ab-2b 12s^2t-20st^2 2a^4-6a^3-2a^2 1/2m^3+2mn^3 3a(x-y)-6b(y-x) -4a^2b-6ab^2+8ab5(m+n)^2-4m-4n 求分解因式 1.4x-2(x-3)-3[x-3(4-2x)+8]2.8ab-{4a-3[6ab+5(ab+a-b)-7a]-2} 合并同类项 6x^2-2x-4x^2+5x+1-ab^3+3b^3a 1、求x^21+x^15+x^12+x^9+x^6+x^3+1被x^2+x+1除所得的余式 2、求x^2012-x^2011+5x^201不好意思,接着上面重复第二题:求x^2012-x^2011+5x^2010-x^3被x+1除,所得余数3、已知x-by=y-ax=bx-ay=1,且ab≠1,求a^2+b^2+ab+a+b的值4、 (X²+4x+8)²+3x(x²+4x+8)+2x²因式分解 (X²+4x+8)²+3x(x²+4x+8)+2x²(2x²-3x+1)²-22x²+33x-1(x²+x+1)(x²+x+2)-12(6x-1)(2x-1)(3x-1)(x-1)+x²ab(a+b)²-(a+b)²+1x²+xy-6y (1)x^6+64y^6+12x^2y^2-1(2)4m^2-14mx+49nx-14mn(3)a^2b^2c-ab^3c+a^2bc^2-ab^2c^2(4)x^5-x^3-x^2-1(5)1+a+b+c+ab+bc+ac+abc(6)ab(c^2-d^2)-cd(a^2-b^2)(7)(x^2+1)^2-x^2+x(x-2)(x^2+x+1) 因式分解:a平方+5ab+6b平方+a+2b;x四次方-2x平方+5x-4 因式分解:-8³b²+12ab³c-6a²b(x+2)(x-6)+16(x+2)(x+4)+(x²-4) 1.约分(1)5x / 25x^2 (2)9ab^2+6abc / 3a^2b (3)9a^2+6ab+b^2 / 3a+b (4)x^2-36 / 2x+12 计算题:① <(x-1/x+1)-(x+1/x-1)>÷x+3/x*x+4x+4)② (a*a-2ab+b*b)/(a*a+ab)*(a+b)/(ab-b*b)③ (2x/x*x-1)-1/(x-1)④ -a-6约分:① 1/2*x*x*y ,1/3*x*y*y② 1/(2x+2) ,3/(x*x-1)化简:① (3+x)/(2+x)+(x*x-4) 若X^5-3x^4+7x^3-6x^2+2x+9=(x-a)(x-b)(x-c)(x-d)(x-e)则ab+ac+ad+ae+bc+bd+be+cd+ce+de=? 若x^5-3x^4+7x^3-6x^2+2x+9=(x-a)(x-b)(x-c)(x-d)(x-e)则ab+ac+ad+ae+bc+bd+be+cd=? 1) 通分 (x+6)/(x^2-x) x/x^2+4x-12 1/x2)已知 a+3b=0 ab不等于0 求(a^2+2ab-b^2)/(2a^2+ab+b^2)的值3)已知(x-y)/xy=3 求(5x+xy-5y)/(x-xy-y)4)已知a b c 满足(a+b)/c=(a+c)/b=(b+c)/a=k 求k的值 (1)(-ab+2)(5ab-3)-ab(1-ab) (2)(-2x)·(x^2-5x+6)-4x(2x^2-3x+1) 因式分解30题(要过程)am+an+bm+bn x^2+5y-xy-5x x2+xy+2xz+x (a+b)x-(b+a)y -12x(x-y)-(y-x)x^2 2x^2+4x+2 x(x+z)-y(y+z) 2(x^2-3ab)+x(4a-3b) 4x^2+12xy+9y^2-25 x^4-16 16x^4-1 x^2+9x+8 x^2-10xy+24y^2 2x^2+15xy-8y^2 3x^2-6xy+3y^2 24x^2+22x-21 -x^2+4xy- 已知4x+1/(x-2)(x-5)=(A/x-5)+(B/x-2).求AB的值