wgenevieve
27.1.10
535
Set 2: Discriminant
5.
If (k-4) x^2-2x-1=0 has equal roots, find k.
Determine the roots for this value of k
. When I did it, k=3, but Idk what I'm meant to do for that second part. And answers say, roots are -1 and -1? ^o)
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