document.write( "Question 8324: In question #8318 can you help me understand where 40 came from in the equation. Is there a way to simplify or shorten? Thanks & sorry I don't understand. \n" ); document.write( "
Algebra.Com's Answer #4561 by bonster(299)\"\" \"About 
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when you multiply (x)(26+x) and equal that to 560 it becomes:
\n" ); document.write( "26(x)+(x)(x)=560 which equals 26x+\"x%5E2\"=560\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B26x-560\"=0
\n" ); document.write( "(x+40) and (x-14) comes from factoring \"x%5E2%2B26x-560\"=0\r
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\n" ); document.write( "\n" ); document.write( "In order to factorize this, you must ask yourself...
\n" ); document.write( "what two numbers must I multiply to get 560 AND who's difference=26
\n" ); document.write( "If you multiply 40 and 14, you'll get 560 AND the difference of 40-14 is 26.\r
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\n" ); document.write( "\n" ); document.write( "BUT, we can safely conclude that we will not use (x+40)=0 because then, we would be saying that someone would be a negative age. \r
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\n" ); document.write( "\n" ); document.write( "In this case, it would only be x-14=0 which would be used because the value of \"x\" would be a positive number. \r
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\n" ); document.write( "\n" ); document.write( "Does that make sense?
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