document.write( "Question 42589: solve x squared-4x-5=0 \n" ); document.write( "

Algebra.Com's Answer #27680 by Earlsdon(6294) $\"\"$ $\"About$

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Solve:
\n" ); document.write( " $\"x%5E2-4x-5+=+0\"$ This is factorable so you can solve it by factoring.
\n" ); document.write( " $\"%28x%2B1%29%28x-5%29+=+0\"$ Apply the zero products principle.
\n" ); document.write( " $\"x%2B1+=+0\"$ and/or $\"x-5+=+0\"$
\n" ); document.write( "If $\"x%2B1+=+0\"$ then $\"x+=+-1\"$
\n" ); document.write( "If $\"x-5+=+0\"$ then $\"x+=+5\"$ \r
\n" ); document.write( "\n" ); document.write( "The roots are:
\n" ); document.write( "x = -1
\n" ); document.write( "x = 5 \n" ); document.write( "

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