Question

 If the sum of the roots of the quadratic equation x²+px-9=0(p€R) is zero. Then the value of 'p' is​

Answer 1

Answer:

Given equation

x

2

+px+q

Also, given p,q are the roots of the equation.

p+q=−p

2p=−q .....(1)

And pq=q

q(p−1)=0

⇒q=0 or p=1

So, by (1), q=0⇒p=0

Hence, the values of p are 0,1.