因式分解 a^3-6a^2-7a
问题描述:
因式分解 a^3-6a^2-7a
答
a³-6a²-7a
=a(a²-6a-7)
=a(a-7)(a+1)
因式分解 a^3-6a^2-7a
a³-6a²-7a
=a(a²-6a-7)
=a(a-7)(a+1)