3 years ago

Find the value of k for which the quadratic equation 4x2+kx+3=0 has equal roots.

Mathematics

1 answer:

charle [14.2K]3 years ago

4 0

Answer:

k = +/-√48

Step-by-step explanation:

4x^2 + kx + 3 = 0

For equal (duplicate) roots the discriminant = 0, so

k^2 - 4*4*3 = 0

k^2 - 48 = 0

k^2 = 48

k = +/-√48

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