数学题 因式分解

2024-12-20 18:43:24
推荐回答(6个)
回答1:

(m²+n²)²-4m²n² =m²n²(m²n²-4)=[(mn)²-2²]=m²n²(mn+2)(mn-2)

x ²+2x+1-y² =(x+1)²-y²=(x+1+y)(x+1-y)

(a+1)²(2a-3)-2(a+1)(3-2a)+2a-3 =(a+1)²(2a-3)+2(a+1)(3-2a)+2a-3=(2a-3)[(a+1)²+2(a+1)+1]=(2a-3)(a+1)²

x²-2xy+y²-2x+2y+1=(x-y)²-2(x-y)+1=(x-y+1)²
望采纳,谢谢。

回答2:

(m²+n²)²-4m²n²
=(m²+n²+2mn)(m²+n²-2mn)
=(m+n)²(m-n)²

x ²+2x+1-y²
=(x+1)²-y²
=(x+y+1)(x-y+1)

(a+1)²(2a-3)-2(a+1)(3-2a)+2a-3
=(2a-3)〔(a+1)²+ 2(a+1)+1〕
=(2a-3) (a+2)²

x²-2xy+y²-2x+2y+1
=(x-y)²-2(x-y)+1
=(x-y-1)²

希望我的回答对您有帮助,有问题可以追问。满意请及时采纳,谢谢!

回答3:

(m²-n²)²
(x-y+1)(x+y+1)
(a+2)²(2a-3)
(x-y-1)²

回答4:

(m²+n²)²-4m²n² =(m^2-n^2)=(m+n) ²(m-n)²
x ²+2x+1-y²=(x+1) ²-y ²=(x+1-y)(x+1+y)
(a+1)²(2a-3)-2(a+1)(3-2a)+2a-3 =(2a-3)[(a+1)²+2(a+1)+1]=(2a-1)(a+2)²
x²-2xy+y²-2x+2y+1=(x-y)²-2(x-y)+1=(x-y-1)²
回答数学不容易,自己做的,满意请采纳哦

回答5:

(m²+n²)²-4m²n²=(m²-n²)²
x ²+2x+1-y²=(x+1)²-y²=((x+y+1)(x-y+1)
(a+1)²(2a-3)-2(a+1)(3-2a)+2a-3=(2a-3)*(a+2)²
x²-2xy+y²-2x+2y+1=(x-y-1)²

回答6:

1.(m+n)2(m-n)2 2.(x+1+y)(x+1-y) 3.(a+1)(a-1)(a-3) 4.(x-y-1)2