document.write( "Question 695102: Find all solutions of the system of equations.
\n" ); document.write( "y=4-x^2
\n" ); document.write( "y=x^2-4
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Algebra.Com's Answer #428351 by pmatei(79)\"\" \"About 
You can put this solution on YOUR website!
If you add the two equations you get:\r
\n" ); document.write( "\n" ); document.write( "\"2y=0\"\r
\n" ); document.write( "\n" ); document.write( "\"y=0\"\r
\n" ); document.write( "\n" ); document.write( "Replacing y into any of the original equations:\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2-4=0\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2=4\"\r
\n" ); document.write( "\n" ); document.write( "\"x=+2%29\" or \"x=-2\"
\n" ); document.write( "
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