For what values of k, the equation 9x² + 6kx + 4 = 0 has equal roots?
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Answer:
9x^2 + 6kx + 4 = 0
(6k)^2 - 4 x 9 x 4 = 0
36k^2 = 144
K^2 = 4
K = ±2
Step-by-step explanation:
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