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November 21, 2014

November 21, 2014

Posted by **brenda** on Tuesday, May 22, 2012 at 1:27pm.

49a^2-b^2/7a-b

- Intermediate Algebra -
**Reiny**, Tuesday, May 22, 2012 at 3:07pmI will assume you meant

(49a^2 - b^2)/(7a - b)

clearly a difference of squares

= (7a+b)(7a-b)/(7a-b)

= 7a + b , b ≠ 7a

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