Question
Solve:
$ 144 a^2-289 b^2$
$ 144 a^2-289 b^2$
✓
Answer
$ 144 a^2-289 b^2$
$ =(12 a)^2-(17 b)^2 $
$ =(12 a-17 b)(12 a+17 b) $
$ =(12 a)^2-(17 b)^2 $
$ =(12 a-17 b)(12 a+17 b) $
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