Question

Find the value of p for which px^
2 + 3x + 2 = 0 has real and equal roots.​

Answer 1

Answer:

px  

2

−8x+2p=0  

here, a=p,b=−8,c=2p

For equal roots b  

2

−4ac=0

or, (−8)  

2

−4(p)(2p)=0

or, 64−8p  

2

=0

or, −8p  

2

=−64

or, 8p  

2

=64

or, p  

2

=  

8

64

​  

=8

or, p=±  

8

​  

=±2  

2

​