document.write( "Question 185115: little unsure about even root property\r
\n" ); document.write( "\n" ); document.write( "3x^2 -5=16
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Algebra.Com's Answer #138870 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"3x%5E2-5=16\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"3x%5E2=16%2B5\"Add \"5\" to both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"3x%5E2=21\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2=%2821%29%2F%283%29\" Divide both sides by \"3\".\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2=7\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "\"x=0%2B-sqrt%287%29\" Take the square root of both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"x=sqrt%287%29\" or \"x=-sqrt%287%29\" Break up the \"plus/minus\" to form two equations.\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x=sqrt%287%29\" or \"x=-sqrt%287%29\" .
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