Which of the following polynomials does not have real roots?

a. x2 - 17x - 7
b. -x4 + 4x2 + 6
c. x4 + 2x2 + 2
d. 2x2 - 13

the answer for this question is 38

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation: