Question

What is the root of P(x)=2x^3-6x^2-5x+15?

Answer 1

I used a calculator.
\[(x-3)(\sqrt{2}x+\sqrt{5})(\sqrt{2}x-\sqrt{5})\]

Answer 2

yes me too and I got the same answer

Answer 3

You can choose between -5, 0, 1, 3

Answer 4

I would go with 5 or 3

Answer 5

Since the roots are where the function crosses the x axis, the answer is 3.