Question

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

Answer 1

- Square root of 7

Explanation:

Radicals always come in pairs. Hope this helps!

Answer 2

-√7

Explanation:

radical roots always occur in pairs.

√7 is a root ,so -√7 should also be a root of polynomial f(x)