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January 30, 2015

January 30, 2015

Posted by **Tshenolo** on Friday, February 25, 2011 at 2:38pm.

- math -
**Helper**, Friday, February 25, 2011 at 2:59pm48a^2 + 4ab - 140b^2

Factor out 4

4(12a^2 + ab - 35b^2)

4(3a - 5b)(4a + 7b)

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