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April 23, 2014

April 23, 2014

Posted by **harry** on Friday, April 16, 2010 at 1:54pm.

1. 3a^2 - 2a - 8

2. 3x^2 + 31 + 10

3. 64y^2 - 49

please help

thankyou

- math -
**Damon**, Friday, April 16, 2010 at 1:59pmwell, 6 and 4 differ by 2

so

(3a+4)(a-2)

I need 30 and 1 so

(3x+1)(x+10)

difference of 2 squares

a^2-b^2 = (a-b)(a+b)

here a = 8y and b = 7

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