Posted by **Jonathon** on Wednesday, October 13, 2010 at 6:05pm.

Reduce each rational expression to lowest terms:

3x^2-12y^2 over x^2+4xy+4y^2

- Math -
**Henry**, Friday, October 15, 2010 at 6:30pm
(3x^2 - 12y^2) / (x^2 + 4xy + 4y^2),

3(x^2 - 4y^2) / (x + 2y) (x + 2y),

3(x + 2y) (x - 2y) / (x + 2y)(x - 2y),

Cancel two (x + 2y) factors and get:

3(x - 2y) / (x + 2y).

- Math -
**Henry**, Friday, October 15, 2010 at 6:38pm
CORRECTION: The denominator of the 3rd expression should be (x + 2y) (x + 2y).

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