Factor completely.20x4 + 31x2 + 12
A. (5x2 - 4)(4x2 - 3)
B. (20x2 + 3)(x2 + 4)
C. (4x2 + 1)(5x2 + 12)
D. (4x2 + 3)(5x2 + 4)
Answer: D
Mathematics
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