document.write( "Question 163304: x(x-2)=4 \n" ); document.write( "

Algebra.Com's Answer #120330 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x%28x-2%29=4\"$
\n" ); document.write( " $\"x%5E2-2x=4\"$
\n" ); document.write( " $\"x%5E2-2x-4=0\"$
\n" ); document.write( "Use the quadratic formula,
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"x+=+%28-%28-2%29+%2B-+sqrt%28+%28-2%29%5E2-4%2A1%2A%28-4%29+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"x+=+%282+%2B-+sqrt%28+4%2B16+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%282+%2B-+sqrt%2820+%29%29%2F%282%29+\"$
\n" ); document.write( "or approximately
\n" ); document.write( " $\"x%5B1%5D=%282%2B4.47%29%2F2=3.235\"$
\n" ); document.write( " $\"x%5B2%5D=%282-4.47%29%2F2=-1.235\"$ \n" ); document.write( "

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