document.write( "Question 960057: -2x-99+x^2 \n" ); document.write( "

Algebra.Com's Answer #586782 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+-2x+-+99+%2B+x%5E2+\"$
\n" ); document.write( "I'm guessing you want the roots
\n" ); document.write( " $\"+x%5E2+-+2x+-+99+=+0+\"$
\n" ); document.write( "Complete the square
\n" ); document.write( " $\"+x%5E2+-+2x++%2B+%28+2%2F2%29%5E2+=+99+%2B+%28+2%2F2+%29%5E2+\"$
\n" ); document.write( " $\"+x%5E2+-+2x+%2B+1+=+99+%2B+1+\"$
\n" ); document.write( " $\"+%28+x+-+1+%29%5E2+=+10%5E2+\"$
\n" ); document.write( "Take the square root of both sides
\n" ); document.write( " $\"+x+-+1+=+10+\"$
\n" ); document.write( " $\"+x+=+11+\"$
\n" ); document.write( "and, take the negative square root of $\"+10+\"$ ,
\n" ); document.write( " $\"+x+-+1+=+-10+\"$
\n" ); document.write( " $\"+x+=+-9+\"$
\n" ); document.write( "--------------
\n" ); document.write( " $\"+x+=+11\"$ and
\n" ); document.write( " $\"+x+=+-9+\"$ are the roots
\n" ); document.write( "---------------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+x+%2B+9+%29%2A%28+x+-+11+%29+=+0+\"$
\n" ); document.write( " $\"+x%5E2+-+2x+-+99+=+0+\"$
\n" ); document.write( "OK \n" ); document.write( "

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