Question

Please help with this just tell me A B C or D.

Answer 1

The answer is D.

`3x {}^(2) - 10x - 1 = 0`

Explanation:

`x = (5 + 2 √(7) )/(3)`

Divide each term of 5+2√7 by 3 to get 5/3 + 2/3√7.

`x = (5)/(3) + (2)/(3) √(7)`

`x = (2 √(7 + 5) )/(3)`

or

`x = 3.43`