Use the quadratic formula to find the zeros of the function y = 2x2 + 3x + 6. Round to the nearest tenth if necessary.
A. {-1.7, 2.3}
B. {-2.4, 2.4}
C. {-2.3, 0.8}
D. no real solution

Question

Use the quadratic formula to find the zeros of the function y = 2x2 + 3x + 6. Round to the nearest tenth if necessary.
	A.	{-1.7, 2.3}
	B.	{-2.4, 2.4}
	C.	{-2.3, 0.8}
	D.	no real solution

anonymous · Answer

No real solution. The quadratic formula would lead to:
$$\Large \frac{{ - 3 \pm \sqrt { - 39} }}{4}$$So there are only complex roots.

earthcitizen · Answer

complex roots

earthcitizen · Answer

$$(-3\pm39i)/4$$

earthcitizen · Answer

$$(-3 \pm j39)/4$$

anonymous · Answer

So, the answer is D because the roots are imaginary (not real).

anonymous · Answer

well, actually the answer is a complex number, so it has a real part and an imaginary part

anonymous · Answer

Sorry. I did not draw that level of distinction.