6x^2+6x-24怎么解?马上就要答案

问题描述:

6x^2+6x-24怎么解?马上就要答案

6x^2+6x-24
=6(x^2+x-4)
=6(x^2+x+1/4-17/4)
=6[(x+1/2)^2-(√17/2)^2]
=6(x+1/2+√17/2)(x+1/2-√17/2)