Answer: \(k = 12\) or \(k = -12\)
For real and equal roots, \(b^2 - 4ac = 0\). Here \(a = 3, b = k, c = 12\).
\[k^2 - 4(3)(12) = 0\]\[k^2 = 144\]\[k = \pm 12\]1 answer
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· 24 Oct 2026
AI-verified · Oct 2026
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