m^2(m+1)-m-1 因式分解
问题描述:
m^2(m+1)-m-1 因式分解
答
m^2(m+1)-m-1
=m²(m+1)-(m+1)
=(m+1)(m²-1)
=(m+1)(m+1)(m-1)
=(m+1)²(m-1)