for what value of p the equation 2×2 +3px + 1=0 is a quadratic equation or not​

1 thought on “for what value of p the equation 2×2 +3px + 1=0 is a quadratic equation or not​”

1. Answer:

   In ax

   2

   +bx+c=0,

   Discriminant D =b

   2

   −4ac,

   D=0, for the roots to be real and equal

   In 2x

   2

   +px+8=0

   Thus, we have a=2,b=p and c=8

   Then D =b

   2

   −4ac=0

   ∴p

   2

   −4×2×8=0⇒p

   2

   −64=0

   ⇒p=±8.

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