document.write( "Question 1087016: If (x-y)^2 = 71 and x^2 + y^2 = 59, what is the value of xy? \n" ); document.write( "

Algebra.Com's Answer #701282 by ikleyn(52781) $\"\"$ $\"About$

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document.write( " = 71 =  =  -  = 59 - 2xy  ====+\r\n" );
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document.write( "-2xy = 71 - 59 = 12  ====>  xy =  = -6.\r\n" );
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