document.write( "Question 119389: Factor Each Expression:\r
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Algebra.Com's Answer #87460 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"3p%5E3-21p%5E2-p%2B7\" Start with the given expression\r
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\n" ); document.write( "\n" ); document.write( "\"%283p%5E3-21p%5E2%29%2B%28-p%2B7%29\" Group like terms\r
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\n" ); document.write( "\n" ); document.write( "\"3p%5E2%28p-7%29-1%28p-7%29\" Factor out the GCF \"3p%5E2\" out of the first group. Factor out the GCF \"-1\" out of the second group\r
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\n" ); document.write( "\n" ); document.write( "\"%283p%5E2-1%29%28p-7%29\" Since we have the common term \"p-7\", we can combine like terms\r
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\n" ); document.write( "\n" ); document.write( "So \"3p%5E3-21p%5E2-p%2B7\" factors to \"%283p%5E2-1%29%28p-7%29\"
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