If a polynomial function f(x) has roots 3 and square root 7 what must also be a root of f(x)?

- square root 7
i with square root 7
–3
3i

Question

If a polynomial function f(x) has roots 3 and  square root 7 what must also be a root of f(x)?

- square root 7
i with square root 7
–3
3i

anonymous · Answer

Hey!

anonymous · Answer

answer

anonymous · Answer

you can imagine that the function is something like f(x) = (x-7)(x+7)(x-3). sow what do you get by this?

anonymous · Answer

sorry f(x)=(x-sqrt(7))(x+sqrt(7))(x-3)

mathmale · Answer

@tun121:  You'd likely get more and better results after posting your question if you'd first (1) share whatever work you've done yourself, and (2) do NOT ask for or expect someone to give you the answer.   That's very much against the policies of OpenStudy.