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August 2, 2014

August 2, 2014

Posted by **kathy** on Wednesday, July 13, 2011 at 9:56am.

- math -
**MathGuru**, Wednesday, July 13, 2011 at 6:21pmI'm assuming your problem is this:

x^2 - 4y^2

Note: ^2 = squared

If you need to evaluate this expression, substitute -16 for x and 17 for y. Complete the calculations.

I hope this helps and is what you were asking.

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