document.write( "Question 349504: Factor 64x^2-16
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Algebra.Com's Answer #249791 by jim_thompson5910(35256)\"\" \"About 
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\"64x%5E2-16\" Start with the given expression.\r
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\n" ); document.write( "\n" ); document.write( "\"%288x%29%5E2-16\" Rewrite \"64x%5E2\" as \"%288x%29%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "\"%288x%29%5E2-%284%29%5E2\" Rewrite \"16\" as \"%284%29%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "Notice how we have a difference of squares \"A%5E2-B%5E2\" where in this case \"A=8x\" and \"B=4\".\r
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\n" ); document.write( "\n" ); document.write( "So let's use the difference of squares formula \"A%5E2-B%5E2=%28A%2BB%29%28A-B%29\" to factor the expression:\r
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\n" ); document.write( "\n" ); document.write( "\"A%5E2-B%5E2=%28A%2BB%29%28A-B%29\" Start with the difference of squares formula.\r
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\n" ); document.write( "\n" ); document.write( "\"%288x%29%5E2-%284%29%5E2=%288x%2B4%29%288x-4%29\" Plug in \"A=8x\" and \"B=4\".\r
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\n" ); document.write( "\n" ); document.write( "So this shows us that \"64x%5E2-16\" factors to \"%288x%2B4%29%288x-4%29\".\r
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\n" ); document.write( "\n" ); document.write( "In other words \"64x%5E2-16=%288x%2B4%29%288x-4%29\".\r
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\n" ); document.write( "\n" ); document.write( "If you need more help, email me at jim_thompson5910@hotmail.com\r
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\n" ); document.write( "\n" ); document.write( "Also, feel free to check out my tutoring website\r
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\n" ); document.write( "\n" ); document.write( "Jim
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