find the value of p if the quadratic equation x²+px+4=0 has equal root
Answers
Answered by
3
Answer:
According to problem
b^2 - 4ac = 0
=>p^2 - 4×1×4 = 0
=>p^2 - 16 = 0
=>p^2 = 16
=>p = 4 or -4
Similar questions