几题因式分解求过程、、3种混合 (1)ax+ay+a (2)3mx-6mx눀(3)4a눀-10ah4.x눀y+xy눀

2025-05-14 01:34:00
推荐回答(2个)
回答1:

(1)ax+ay+a =a(x+y+1)
(2)3mx-6mx²=3mx(1-2x)
(3)4a²-10ah=2a(2a-5h)
(4).x²y+xy²=xy(x+y)
(5)12xyz-9x²y² =3xy(4z-3xy)
(6)x²-6xy+x =x(x-6y+1)
(7)-25x+x³ =-x(5+x)(5-x)
(8)4x³-8x²+4x=4x(x-1) ²
(9) m²-n²+2m-2n=(m-n)(m+n+2)

回答2:

(1)ax+ay+a =a(x+y+1)
(2)3mx-6mx²=3mx(1-2x)
(3)4a²-10ah=2a(2a-5h)
(4).x²y+xy²=xy(x+y)
(5)12xyz-9x²y² =3xy(4z-3xy)
(6)x²-6xy+x =x(x-6y+1)
(7)-25x+x³ =(x-5)(x+5)
(8)4x³-8x²+4x =4x(x-1)^2
(9) m²-n²+2m-2n=(m+n)(m-n)+2(m-n)=(m-n)(m+n+2)