3a的3次方-27a (因式分解计算)
问题描述:
3a的3次方-27a (因式分解计算)
答
3a^3-27a
=3a(a^2-9)
=3a(a+3)(a-3) .
3a的3次方-27a (因式分解计算)
3a^3-27a
=3a(a^2-9)
=3a(a+3)(a-3) .