document.write( "Question 1098621: how do I solve. x-y=4 & x^2-y^2=8\r
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Algebra.Com's Answer #712991 by Alan3354(69443) You can put this solution on YOUR website! how do I solve. x-y=4 & x^2-y^2=8 \n" ); document.write( "--------------- \n" ); document.write( "x-y=4 \n" ); document.write( "x^2-y^2=8 \n" ); document.write( "(x-y)*(x+y) = 8 \n" ); document.write( "4(x+y) = 8 \n" ); document.write( "x+y = 2 \n" ); document.write( "x-y = 4 \n" ); document.write( "--- \n" ); document.write( "Can you do the rest?\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |