-4a^3+16a^2b-26ab^2 x^5-x^3 (x^2+y^2)^2-4x^2y^2 25(x+y)^2+10
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/19 22:19:12
-4a^3+16a^2b-26ab^2 x^5-x^3 (x^2+y^2)^2-4x^2y^2 25(x+y)^2+10(x+y)+1 a*(-a^2)^3*(a^3)^2
-4a^3+16a^2b-26ab^2
=-2a(2a^2-8ab+13b^2)
x^5-x^3
=x^3(x^2-1)
=x^3(x-1)(x+1)
(x^2+y^2)^2-4x^2y^2
=(x^2+y^2+2xy)(x^2+y^2-2xy)
=(x+y)^2(x-y)^2
25(x+y)^2+10(x+y)+1
=[5(x+y)+1]^2
=(5x+5y+1)^2
a*(-a^2)^3*(a^3)^2
= a*(-a^6)*(a^6)
=-a^13
再问: -2a(2a^2-8ab+13b^2) tangram_guid_1360583159324???????? 为什么不能提一个-4a呢?
再答: -4a^3+16a^2b-26ab^2 =-4a(a^2-4ab+13/2b^2)(有分数,一般不这样提取公因式)
=-2a(2a^2-8ab+13b^2)
x^5-x^3
=x^3(x^2-1)
=x^3(x-1)(x+1)
(x^2+y^2)^2-4x^2y^2
=(x^2+y^2+2xy)(x^2+y^2-2xy)
=(x+y)^2(x-y)^2
25(x+y)^2+10(x+y)+1
=[5(x+y)+1]^2
=(5x+5y+1)^2
a*(-a^2)^3*(a^3)^2
= a*(-a^6)*(a^6)
=-a^13
再问: -2a(2a^2-8ab+13b^2) tangram_guid_1360583159324???????? 为什么不能提一个-4a呢?
再答: -4a^3+16a^2b-26ab^2 =-4a(a^2-4ab+13/2b^2)(有分数,一般不这样提取公因式)
(2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y)
几道因式分解..4ab(a+b)^2-6a^2b(a+b)(x+y)^2(x-y)+(x+y)(x-y)^22a(a-3
3a-3b/10ab*25a^b3/a^-b^= x^-4y^/x^+2xy+y^/x+2y/2x^+2xy
x²(x+y)(y-x)-xy(x+y)(x-y) 已知a+b=4,ab=-2,求多项式3a²b+3
计算:(2a-5b)(2a^2-3ab+b^2) (3x+2y)(2x+3y)-(x-3y)(3x+4y)
因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)(
因式分解 1)9x^4-25y^6 2)4x^2+(x+y)^2+4x(x+y) 3)(a+2b)^2-4ab-13b^
已知集合A={(x,y)| (y-3)/ (x-1)=2,x,y∈R},B={(x,y)| 4x+ay=16,x,y∈
(1)2(a^2-ab)-2a^2+3ab (2)5(2x-7y)-3(4x-10y) (3)(x+y)-[3x+(-x
-4a^3+16a^2b-26ab^2 x^5-x^3 (x^2+y^2)^2-4x^2y^2 25(x+y)^2+10
分解因式1.2a(x-y)-3b(y-x)2.-x^y-2xy+35y3.a^(x-y)-4b^(x-y)若|a+2|+
分解公因式p(x-y)-q(y-x)(a+b)(a-b)-(b+a)10a(x-y)^2-5b(y-x)3p(m-2n)