Question

if you know that 7-sqrt5 is a root of a polynomial function, then the bame given to 7+sqrt5 which is another root of that same function, is the radical ___?

Answer 1

@fitzincorporated

Answer 2

I don't have a clue about polynomials, sorry :I

Answer 3

Can you tag someone who does? Please

Answer 4

Someone help?

Answer 5

@cambam17

Answer 6

@katie00

Answer 7

@raymonde20

Answer 8

Thank you

Answer 9

I think the answer is "expression"?

Answer 10

Hint:
read:
https://www.mathsisfun.com/algebra/conjugate.html