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Source: — Problem Solving |

by ssmiles08 » Tue Jun 09, 2009 6:33 am
IMO (D)

[(x-y)(x+y)(x-y)(x+y)]/[(x+y)(x+y)]

= (x-y)^2 = x^2 - 2xy + y^2
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by PAB2706 » Tue Jun 09, 2009 6:47 am
D it is.
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by yogami » Tue Jun 09, 2009 7:13 am
this one threw me off for a second when i thought that the second part was part of the exponent. Dang!!
200 or 800. It don't matter no more.
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