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If p and q are the zeroes of the polynomial 2x²+3x+2 then find the value of- 1) p+q+pq 2) pq(p+q) 3) 1/p + 1/q 4) p/q + q/p
Given polynomial is 2x2 + 3x +2
a = 2; b = 3;  c = 2

p + q =- coefficient of x = -b/a  = -3/2
             coefficient of x2
pq =  constant              = c/a   2/2 = 1
      coefficient of x2

1) p+q+pq
    -3/2 + 1
   =-3+2/2
   = -1/2

2) pq(p+q)
    = 1(-3/2)
    = -3/2

3) 1/p + 1/q
    = (p + q)/pq
    = -3/2 /1
    = -3/2