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Algebra help factoring?

factor:

4x^2+9+12x-4y^2

 Nov 21, 2017
 #1
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4x^2+9+12x-4y^2        write as

 

4x^2 - 12x  +  9  -  4y^2         factor the first three terms

 

(2x - 3)(2x - 3)  - 4y^2          simplify

 

(2x - 3)^2  -  4y^2      we have a difference of squares...so we have

 

[ (2x  - 3) + 2y ]  [ (2x - 3)  - 2y ]

 

 

cool cool cool

 Nov 21, 2017

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