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18 June, 09:27

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

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  1. 18 June, 09:37
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    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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