Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.80a2 + 80a - 25

A. 5(4a + 5)(4a - 1)
B. (20a + 25)(4a - 1)
C. 5(4a - 5)(4a + 1)
D. (4a + 5)(20a - 5)


Answer: A

Mathematics

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