m^3-2m^2-4m+8 因式分解 谢谢 给好评的

2025-06-26 15:59:48
推荐回答(3个)
回答1:

m^3-2m^2-4m+8
=m^3-4m-2(m^2-4)
=m(m^2-4)-2(m^2-4)
=(m-2)(m^2-4)
=(m-2)(m-2)(m+2)
=(m-2)^2(m+2)

希望帮到您

回答2:

解:m^3-2m^2-4m+8=m^3-4m-2m^2+8=m(m^2-4)-2(m^2-4)=(m-2)(m^2-4)
=(m-2)(m-2)(m+2)=(m-2)^2(m+2)

满意请采纳、、谢谢!!

回答3:

=(m^3-2m^2)-(4m-8)
= m^2(m-2)-4(m-2)
=(m^2-4)(m-2)
=(m-2)^2(m+2)