document.write( "Question 118367: How do I find the LCM and GCF of \"x%5E3%2B10x%5E2%2B25x\" and \"x%5E4%2B5x%5E3\"? \n" ); document.write( "
Algebra.Com's Answer #86487 by MathLover1(20850)\"\" \"About 
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To find either the Least Common Multiple (\"LCM\") or Greatest Common Factor (\"GCF\") of two numbers (or expressions), you always start out the same way: you \"find+\"the \"prime+\"\"factorizations\" of the two numbers(or expressions).\r
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\n" ); document.write( "\n" ); document.write( "so, we will factor it first:\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E3+%2B+10x%5E2+%2B+25x\"\r
\n" ); document.write( "\n" ); document.write( "=\"x%28x%5E2+%2B+10x+%2B+25%29\"………notice that \"+x%5E2+%2B+10x+%2B+25\" is square of the sum of two numbers\r
\n" ); document.write( "\n" ); document.write( "=\"x%28x+%2B+5%29%5E2\"………\r
\n" ); document.write( "\n" ); document.write( "\"x%28x+%2B+5%29%28x+%2B+5%29\"……… the \"prime\"\"+factors\"\r
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\n" ); document.write( "\n" ); document.write( "Now factor the other expression:\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E4+%2B+5x%5E3+\"……..factor out common \"x%5E3\"\r
\n" ); document.write( "\n" ); document.write( "=\"x%5E3%28x%2B+5%29+\"……..or…..\"x%2Ax%2Ax%28x%2B+5%29+\"…….. the \"prime\"\"+factors\"\r
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\n" ); document.write( "\n" ); document.write( "Now write them in order:\r
\n" ); document.write( "\n" ); document.write( "\"+x%5E3+%2B+10x%5E2+%2B+25x+=+x%28x+%2B+5%29%28x+%2B+5%29\"………\r
\n" ); document.write( "\n" ); document.write( "\"x%5E4+%2B+5x%5E3+%85%85%85..=+x%2Ax%2Ax%28x%2B+5%29+\"\r
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\n" ); document.write( "\n" ); document.write( "since the \"LCM\" is the smallest expression that both \"x%5E3+%2B+10x%5E2+%2B+25x\" and \"x%5E4+%2B+5x%5E3+\" will divide into, or it is the smallest expression that contains both \"x%5E3+%2B+10x%5E2+%2B+25x\" and \"x%5E4+%2B+5x%5E3+\" (that both expressions fit in to), we will have:\r
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\n" ); document.write( "\n" ); document.write( "\"LCM+=+x%2Ax%2Ax%28x+%2B+5%29%28x+%2B+5%29+=+x%5E3%28x%5E2+%2B+10x+%2B+25%29\"………\r
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\n" ); document.write( "\n" ); document.write( "since the \"+GCF+\"is the biggest expression that will divide into both \"x%5E3+%2B+10x%5E2+%2B+25x+\"and \"x%5E4+%2B+5x%5E3+\"(inother words, it's the expression that contains all the common factors), the \"GCF\" is the \"product\" of any and all factors that \"x%5E3+%2B+10x%5E2+%2B+25x\" and \"x%5E4+%2B+5x%5E3+\" share. It will be:\r
\n" ); document.write( "\n" ); document.write( "\"GCF+=+x%28x%2B5%29+=+x%5E2+%2B+5x\"
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