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If $f(x)=0$ has roots $x=\dfrac{-5\pm \sqrt{3 -12k^2}}{4}$, for which values of $k$ will the roots be equal?
in Mathematics by Diamond (62,510 points) | 56 views

1 Answer

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3-12k^2 = 0 for equal roots

    1-4k^2 = 0

      (1-2k)(1+2k)=0

                k= 1/2  or k= -1/2
by Diamond (42,484 points)

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