document.write( "Question 176438: how do you figure out a square root? like the square root of 4985? \n" ); document.write( "
Algebra.Com's Answer #131553 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\"sqrt%284985%29\" Start with the given expression\r
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\n" ); document.write( "\n" ); document.write( "The goal of simplifying expressions with square roots is to factor the radicand into a product of two numbers. One of these two numbers must be a perfect square. When you take the square root of this perfect square, you will get a rational number.\r
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\n" ); document.write( "\n" ); document.write( "So let's list the factors of 4985\r
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\n" ); document.write( "\n" ); document.write( "Factors:\r
\n" ); document.write( "\n" ); document.write( "1, 5, 11, 55, 89, 445, 979, 4895.\r
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\n" ); document.write( "\n" ); document.write( "Since none of these factors are perfect squares, we cannot simplify \"sqrt%284985%29\"\r
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\n" ); document.write( "\n" ); document.write( "We can use a calculator to approximate \"sqrt%284985%29\" to get \"sqrt%284985%29=70.605\" (which is approximate)
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