a的三次方×b+2×a的平方×b-3ab因式分解

问题描述:

a的三次方×b+2×a的平方×b-3ab因式分解

原式=a³b+2a²b-3ab
=ab(a²+2a-3)
=ab(a+3)(a-1)

a^3b+2a^2b-3ab
=ab(a^2+2a-3)
=ab(a+3)(a-1)

原式=ab(a²+2a-3)
=ab(a+3)(a-1)