Question

If the roots of the quadratic equation x^2 + px + 16 = 0 are equal, then find the value of p.​

Answer 1

Answer:

p=64

Step-by-step explanation:

roots of x^2+pc+16=0 are equal

then,

b^2-4ac=0

p^2-4*1*16=0

p^2=64

p=±8

Answer 2

Answer:

p=±8

Step-by-step explanation:

here we will use quadratic formula,

b²-4ac=D

according to question,

D=b²-4ac=0

=[p]²-4[1][16]=0

=p²-64=0

=p²=64

=p=√64

=p=±8