Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.3x2 + 12x = -2

A.  ? -0.087,  ? -1.913
B.  ? -2.174,  ? -1.913
C.  ? 0.160,  ? -4.160
D.  ? -0.174,  ? -3.826


Answer: D

Mathematics

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A. 80 mph B. 40 mph C. 50 mph D. 20 mph

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A. (-?, -4] ? [7, ?) B. [7, ?) C. (-?, -4] D. [-4, 7]

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