Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x2 + 8x + 4 = 0? Pick one:
A) 12  B) 14  C) 18  D) 20  E) 22
a/b + b/a = (a2 + b2)/ab = (a2 + b2 + a + b)/ab   = [(a + b)2 - 2ab]/ab   a + b = -8/1 = -8   ab = 4/1= 
<gadget id="calculator">4/1</gadget>
<output>4</output>
4   Hence a/b + b/a= [(-8)2 - 2(4)]/4 = 56/4= 
<gadget id="calculator">56/4</gadget>
<output>14</output>
14.   14)
<result>B</result>
Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x2 + 8x + 4 = 0?