Question

The polynomial given below has _____ root(s).

2x2 + 5x + 2

A. two complex
B. two positive
C. two negative
D. one positive and one negative

Answer 1

we can start with the determinant to determine the nature of the roots

Answer 2

b^2 - 4ac

25 -4(2)(2) = 25 -16 = 9

Answer 3

B.

Answer 4

oh no C.

Answer 5

it has at 2 real roots at least

Answer 6

x=-2,-1/2

Answer 7

yep, a graph confirms at least they are 2 negatives ;)

http://www.wolframalpha.com/input/?i=2x2+%2B+5x+%2B+2