Mathematics, 20.04.2021 20:10 emmilee94

Find a value of k such that kx2 + 12x - 4 = 0 has one real-number solution. Explain. A. 6; the equation of the discriminant is 12(2) – 4k(4) = 0.
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B. -9; the equation of the discriminant is 122 - 4k(-4) = 0.
O C. 36; the equation of the discriminant is 122 - 4k = 0.
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D. 9; the equation of the discriminant is 122 - 4k(4) = 0.

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Find a value of k such that kx2 + 12x - 4 = 0 has one real-number solution. Explain. A. 6; the equ...