Question

What are the zeros of the function? What are the multiplicities?
\[(fx)=5x^3-5x^2-30x\]
Factor:
\[(5x)(x^2 - x - 6)\]
What do I do from there?

Answer 1

to get the zeros, equate f(x) = 0

5x (x^2-x-6) = 0

5x = 0 or x^2 -x-6 =0
can you solve that quadratic ?

Answer 2

\[x\; =\; \frac {-b\; \pm\; \sqrt {b^2\; -\; 4ac}}{2a}\\\]
How would I in put that into the formula?

Answer 3

you only know quadratic formula method ?
do u also know factor method to solve quadratics ?

Answer 4

Nope :/

Answer 5

ok, lets do it by quadratic formula :)