document.write( "Question 807145: If x^2+y^2=-2xy, what does the expression x^3 + 2y^3 equal? \n" ); document.write( "

Algebra.Com's Answer #486520 by tommyt3rd(5050) $\"\"$ $\"About$

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$\"x%5E2%2By%5E2=-2xy\"$
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\n" ); document.write( "\n" ); document.write( " $\"%28x%2By%29%5E2=0\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x%2By=0\"$ .\r
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