SOLUTION: Factor completely. -64+a^2

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Question 701306: Factor completely. -64+a^2
Answer by jim_thompson5910(35256) About Me  (Show Source):
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-64+a^2

a^2 - 64

a^2 - 8^2

(a - 8)(a + 8)

Answer: (a - 8)(a + 8)