document.write( "Question 281528: What are ways for factoring in an organized way? \n" ); document.write( "
Algebra.Com's Answer #204526 by Mathematicians(84)\"\" \"About 
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Starting from easiest to most complicated:\r
\n" ); document.write( "\n" ); document.write( "Greatest common factoring:
\n" ); document.write( "Take out the greatest common factor:
\n" ); document.write( "\"5x+%2B+5\"
\n" ); document.write( "Since 5 is in both:
\n" ); document.write( "\"+5%28x+%2B+1%29\"\r
\n" ); document.write( "\n" ); document.write( "Trinomial factoring (easy):
\n" ); document.write( "This example will have nothing near the x^2
\n" ); document.write( "\"x%5E2+%2B+3x+%2B+2\"\r
\n" ); document.write( "\n" ); document.write( "You need to find two things that add up to 3 and multiply to be 2.
\n" ); document.write( "In this case, 1 and 2 are your answers because 1 + 2 = 3 and 1 * 2 = 2\r
\n" ); document.write( "\n" ); document.write( "so \"x%5E2+%2B+3x+%2B+2+=+%28x%2B2%29%28x%2B1%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Factor by grouping:
\n" ); document.write( "This will not work all the time.
\n" ); document.write( "\"x%5E3+%2B+x%5E2+%2B+x+%2B+1\"
\n" ); document.write( "Group the first two terms and the last two terms:
\n" ); document.write( "\"%28x%5E3+%2B+x%5E2%29+%2B+%28x+%2B+1%29\"
\n" ); document.write( "We can use greatest common factoring, x^2 is the same in the first two terms and 1 is the same in the next two.\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%28x%2B1%29+%2B+1%28x%2B1%29\"
\n" ); document.write( "At this step, you can tell if grouping will work, you will see that we have two (x+1), from this step, you can factor out an (x+1) from each term:\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2+%2B1%29%28x%2B1%29\" many people see this step as taking only one of the (x+1) terms and taking the x^2, and the +1 and put it together.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Trinomial factoring (hard):
\n" ); document.write( "This example will have something near the x^2
\n" ); document.write( "\"9x%5E2+%2B+6x+%2B+1\"\r
\n" ); document.write( "\n" ); document.write( "The method to do this one is to multiply the first and last number together:
\n" ); document.write( "\"+9+%2A+1+=+9\"\r
\n" ); document.write( "\n" ); document.write( "Now you want to do something similar to the first one, two things that multiply to be 9 and add up to be 6. The answer is 3 and 3, so we divide the middle up like this:\r
\n" ); document.write( "\n" ); document.write( "\"9x%5E2+%2B+3x+%2B+3x+%2B+1\"\r
\n" ); document.write( "\n" ); document.write( "If all went right, you can factor by grouping:\r
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "\n" ); document.write( "Those should be all the factoring methods you will need to know, the other one is much tougher but is very tricky and is taught at higher levels.\r
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