Question

Hi how can i find the domain of [(2x^3)-5]/(x^2+x-6)

Answer 1

go joe!

Answer 2

i'm sleepy i couldn't go to sleep last night :(

Answer 3

you dont want the denominator of the fraction to be 0. so lets factor that quadratic and see what x cant be.

Answer 4

=/ i got a little sleep, but not a lot, i dont know what im doing up yet lol

Answer 5

and those numbers that cant work are the domain?

Answer 6

yes, that is correct mlo, the numbers we get from setting the denominator = 0 are the numbers that cant be in the domain, everything else is ok

Answer 7

alright THanks!!!! (:

Answer 8

so we have:
\[x^{2}+x-6 = 0 \Rightarrow (x+3)(x-2) = 0 \Rightarrow x = -3, x = 2\]
so our domain is all real numbers, except for -3 and 2

Answer 9

that's what i got, Thank you (:

Answer 10

gj you

Answer 11

a person that can actually do some of the work themselves...youre awesome mlo!
@myininaya thank you :)