(1)(m²-3m)²n+2n(m²-2m)+n
问题描述:
(1)(m²-3m)²n+2n(m²-2m)+n
(2)x²+11x-80
(3)x²-10x-24
答
(1)(m²-3m)²n+2n(m²-2m)+n=n[(m²-3m)²+2m²-4m+1]=n(m^4-6m³+9m²+2m²-4m+1)=n(m^4-6m³+11m²-4m+1)(2)x²+11x-80=(x-5)(x+16)(3)x²-10x-2...