document.write( "Question 334833: I don't understand why this is the answer to this problem.\r
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Algebra.Com's Answer #239912 by Edwin McCravy(20054) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Learn the rule for factoring the difference of two squares\r\n" );
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document.write( "Rule:  \r\n" );
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document.write( "Write that as \r\n" );
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document.write( "Apply the rule above:\r\n" );
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document.write( "Write what's in the second parentheses this way:\r\n" );
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document.write( "Apply the rule to the second parentheses:\r\n" );
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document.write( "(Notice that the rule does not work for the sum of two squares,\r\n" );
document.write( "so we have to leave the first parentheses just as it is because\r\n" );
document.write( "of the + between the terms.)\r\n" );
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document.write( "Edwin

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