document.write( "Question 1113462: -2 and +2 are equal, if yes how ?\r
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document.write( "we have tried this-
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document.write( "(-2)x(-2)= 2x2
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document.write( "=> (-2)^2=2^2
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document.write( "=> (-2)=2
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document.write( " Is it correct ? \n" );
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Algebra.Com's Answer #728503 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! -2 is not equal to 2. \n" ); document.write( "----------- \n" ); document.write( "Squaring and then taking the square root can introduce extraneous \"solutions.\" \n" ); document.write( " \n" ); document.write( " |