Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x2 + 9x + 4 = 0? Choose the correct option
A) 17
B) 88
C) 14
D) 65
E) 89
a/b + b/a = (a2 + b2)/ab = (a2 + b2 + a + b)/ab   = [(a + b)2 - 2ab]/ab   a + b = -9/1 = -9   ab = 4/1= 
<gadget id="calculator">4/1</gadget>
<output>4</output>
4   Hence a/b + b/a= [(-9)2 - 2(4)]/4 = 73/4 = 18.25.   88)
<result>B</result>
Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x2 + 9x + 4 = 0?