if the roots of a quadratic equation x2 + px + 16=0, are equal, then the value of p is - Maths - Quadratic Equations

Question

if the roots of a quadratic equation x2 + px + 16=0, are equal,
then the value of p is?

Varun.Rawat · Accepted Answer

The given equation is,
x2 + px + 16 = 0we have a = 1 ; b = p , c = 16D = b2 - 4ac = p2 -
64

Since the given equation has equal roots, so D = 0
⇒p2 - 64 = 0⇒p2 = 64⇒p = ±8

if the roots of a quadratic equation x2 + px + 16=0, are equal, then the value of p is?