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September 18, 2014

September 18, 2014

Posted by **raja harishchandra** on Monday, June 24, 2013 at 10:54am.

- math -
**Steve**, Monday, June 24, 2013 at 11:00amsince all squares are >= 0, both squared expressions must be zero. So you need

x+y-40 = 0 and

x-y-18 = 0

2x-58 = 0

x = 29

y = 11

Only one real value for x satisfies the equation

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