Question

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

Answer 1

k = +/-√48

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