Question

If - 4 is a root of the quadratic equation x^2 + px - 4 = 0 and the quadratic equation x^2 + px + k = 0 has equal roots. Find the value of k

Answer 1

Step-by-step explanation:

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday's law of induction. Wikipedia

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Answer 2

Helloo!!

P(x) = x2 + px - 4

P (-4) = 16 -4p -4 =0

p = 3

for equal roots

b2 - 4ac =0

9 - 8k = 0

-8k = -9

k = 9/8

Hope it helps!!