5x ^ 3 -5x ^2-30x

Question

5x ^ 3 -5x ^2-30x﻿

anonymous · Answer

find x?

jonnyvonny · Answer

If you're trying to find the solutions to this, first, you may factor out an "x", to make the function: $$x(5x^2-5x-30)=0$$ After looking at this for awhile, you may find out that you cannot break this trinomial into 2 binomials (which would have made this quicker). So, we must use the quadratic formula to get the other x-values, if they exist. Remember, one solution is x, for we factored it out (if you don't believe me just plug it in). Hoped this helped, feel free to pst me if further elaboration is required. :)

anonymous · Answer

5 x^3 - 5 x^2 - 30 x﻿ = 5 x (x + 2) (x - 3)

anonymous · Answer

what are the zeros of the function? what are their multiplicities?
f(x)= 5x cubed-5x sqred-30x﻿

this is the full problem srry i didnt say tht earlier

jonnyvonny · Answer

@robtobey  Lol, oh yeah, you can factor out a 5, nice catch.

anonymous · Answer

since @robtobey solve it for you already, and to answer your question, this link will help you understand what you really want... http://www.purplemath.com/modules/polyends2.htm

anonymous · Answer

no i know this but my friend needed more help with it cuz this has left my 11th grade brain since im in pre-cal well u can say cal and i just forgot