Solve this equation? Please?

This was a bonus question on my test today, and I would like to know the answer.

5x^3 + 35x^2 + 60x = 0

Clay2010-10-26T19:58:04Z

Favorite Answer

the solutions of x are 0, -4, and -3

factored out it looks like this

5x(x^2+7x+12)=0
5x(x+4)(x+3)=0

then you separate each part to equal 0
5x=0 x+4=0 x+3=0

then you solve for x on each of them