document.write( "Question 33809: Please help me solve this equation by factoring: $\"5x%5E2%2B8x-21=0\"$ \n" ); document.write( "

Algebra.Com's Answer #20204 by Earlsdon(6294) $\"\"$ $\"About$

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Solve by factoring:
\n" ); document.write( " $\"5x%5E2%2B8x-21+=+0\"$ Factor.
\n" ); document.write( " $\"%285x+-7%29%28x%2B3%29+=+0\"$ Apply the zero products principle.
\n" ); document.write( " $\"5x-7+=+0\"$ and/or $\"x%2B3+=+0\"$
\n" ); document.write( "If $\"5x-7+=+0\"$ then $\"5x+=+7\"$ and $\"x+=+7%2F5\"$
\n" ); document.write( "If $\"x%2B3+=+0\"$ then $\"x+=+-3\"$ \r
\n" ); document.write( "\n" ); document.write( "The roots are:
\n" ); document.write( " $\"x+=+7%2F5\"$
\n" ); document.write( " $\"x+=+-3\"$ \n" ); document.write( "

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