document.write( "Question 1017165: (2x+1)² = 4x²-1 \n" ); document.write( "
Algebra.Com's Answer #633501 by ikleyn(52782)\"\" \"About 
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document.write( "\"%282x%2B1%29%5E2\" = \"4x%5E2-1\".\r\n" );
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document.write( "\"4x%5E2+%2B+4x+%2B+1\" = \"4x%5E2-1\",\r\n" );
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document.write( "\"4x+%2B1\" = \"-1\",\r\n" );
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document.write( "\"4x\" = \"-1+-1\",\r\n" );
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document.write( "\"4x\" = \"-2\".\r\n" );
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document.write( "Can you complete it yourself?\r\n" );
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