Question

HELP!
What are the zeros of the function......attached!
Thank you!

Answer 1

put 3 in evidence,and try x=-1

Answer 2

@RaphaelFilgueiras Guessing's not always going to work.

Factorize 3x^2 - 3x - 6 and 3x - 6, then simplify. You should get a line.

Answer 3

so its -1? :)

Answer 4

yep,since x cant be 2

Answer 5

thank you! :)

Answer 6

you are welcome

Answer 7

since it gives you choices the fastest method is plugging them in and checking. But for future problems with this similar setup you should first simplify using synthetic or long division of polynomials. Then it will be much easier.