document.write( "Question 193961: SIMPLIFY\r
\n" ); document.write( "\n" ); document.write( "THE SQUARE ROOT OF 28 -2*the square root of 7 + 6*the square root of 63
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Algebra.Com's Answer #145590 by RAY100(1637)\"\" \"About 
You can put this solution on YOUR website!
sqrt (28) -2sqrt(7) +6sqrt(63)
\n" ); document.write( "sqrt (4*7) -2sqrt7 +6sqrt (9*7)
\n" ); document.write( "2sqrt7-2sqrt7+6*3sqrt7
\n" ); document.write( "18sqrt7,,,,,,,ANSWER
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\n" ); document.write( "using calculator to calc both original and answer, both gave 47.62 ,, ok
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