document.write( "Question 40555: please help
\n" ); document.write( "find the possible value or values of y in the quadratic equation $\"4-4y-y%5E2=0\"$ ? PLEASE HELP \n" ); document.write( "

Algebra.Com's Answer #25968 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"4-4y-y%5E2=0\"$
\n" ); document.write( "multiply both sides by -1
\n" ); document.write( " $\"y%5E2+%2B+4y+-+4+=+0\"$
\n" ); document.write( " $\"y+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"y+=+%28-4+%2B-+sqrt%28+4%5E2-4%2A1%2A%28-4%29+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"y+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"y+=+%28-4+%2B-+sqrt%28+16+%2B+16+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"y+=+-2+%2B-sqrt%282%29%2A2\"$
\n" ); document.write( " $\"y+=+2%28-1+%2B-sqrt%282%29%29\"$
\n" ); document.write( "so, the answers are
\n" ); document.write( " $\"y+=+2%28-1+%2B+sqrt%282%29%29\"$
\n" ); document.write( "and
\n" ); document.write( " $\"y+=+2%28-1+-+sqrt%282%29%29\"$ \n" ); document.write( "

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