Question

Find the value of k for which the roots of the quadratic equation 2x²+Kx+8=0 will have equal roots

Answer 1

Answer:

Hey mate! Here's your answer:

Step-by-step explanation:

b² - 4ac should be 0 if the roots have to be real and equal.

k² - 4(2)(8) = 0

k² - 64 = 0

k² = 64

k = ±8.

So k = 8 or k = -8.

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