Use a graphing calculator to solve the inequality.x3 - 7x2 + 7x + 15 > 0
A. (-1, 3) ? (5, ?), or {x-1 < x < 3 or x > 5}
B. (-?, -5) ? (-3, 1), or {xx < -5 or -3 < x < 1}
C. (-?, -1) ? (3, 5), or {xx < -1 or 3 < x < 5}
D. (-5, -3) ? (1, ?), or {x-5 < x < -3 or x > 1}
Answer: A
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