document.write( "Question 76932: Hello,\r
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Algebra.Com's Answer #55146 by Edwin McCravy(20086) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Square root of 2X + 3 = 2X - 3 \r\n" );
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document.write( "Square both sides:\r\n" );
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document.write( "Use FOIL on the right\r\n" );
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document.write( "Get 0 on the left by adding\r\n" );
document.write( "-2X-3 to both sides\r\n" );
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document.write( "Divide every term by 2\r\n" );
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document.write( "Factor the right hand side:\r\n" );
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document.write( "Set each factor = 0\r\n" );
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document.write( "That's one answer.\r\n" );
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document.write( "That's the other answer.\r\n" );
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document.write( "You MUST ALWAYS check\r\n" );
document.write( "even-root equations for\r\n" );
document.write( "extraneous answers:\r\n" );
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document.write( "Checking the answer x=3\r\n" );
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document.write( "That checks, so the answer x=3 is a solution.\r\n" );
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document.write( "Checking the answer x=1/2\r\n" );
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document.write( "That DOES NOT check, so the answer x=1/2\r\n" );
document.write( "is NOT a solution.\r\n" );
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document.write( "The only solution is X=3\r\n" );
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document.write( "Edwin

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