document.write( "Question 593776: Factor completely: x² – 16\r
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\n" ); document.write( "This is the answer I came up with. \n" ); document.write( "
Algebra.Com's Answer #376446 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "   x² – 16 \r\n" );
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document.write( "(x + 4)(x - 4)\r\n" );
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document.write( "Check it by FOILing it out and seeing if you get the original.\r\n" );
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document.write( "(x + 4)(x - 4) = x² - 4x + 4x - 16.\r\n" );
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document.write( "That simplifies after cancelling the -4x and the +4x to\r\n" );
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document.write( "x² - 16, which is what you started with, so it is correct.\r\n" );
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document.write( "Edwin
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