Question

Write all the values of p for which the quadratic equation x2 +px+16=0 has equal roots. Find the roots of the equation so obtained

Answer 1

d=0

d=b2-4ac

x2+px+16=0=ax2+bx+c

a=1,b=p,c=16

therefore

b2-4ac=p2-4(1)(16)=0

p2-4×16

p2-64=o

p2=64

p=√64

p=8

Answer 2

I think it will help you

THANK YOU!!!!