document.write( "Question 165005: subtract simply by collecting like radical terms it possible.\r
\n" ); document.write( "\n" ); document.write( "9 sqrt 18 - 6 sqrt 2
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Algebra.Com's Answer #121620 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
\"9%2Asqrt%2818%29+-+6%2Asqrt%282%29\"
\n" ); document.write( "Factor numbers inside radical to it's prime numbers:
\n" ); document.write( "\"9%2Asqrt%282%2A3%2A3%29+-+6%2Asqrt%282%29\"
\n" ); document.write( "Pull out \"pairs\" of like numbers:
\n" ); document.write( "\"9%2A3%2Asqrt%282%29+-+6%2Asqrt%282%29\"
\n" ); document.write( "\"27%2Asqrt%282%29+-+6%2Asqrt%282%29\"
\n" ); document.write( "Factor out sqrt(2):
\n" ); document.write( "\"sqrt%282%29%2827+-+6%29\"
\n" ); document.write( "\"sqrt%282%29%2821%29\"
\n" ); document.write( "\"21%2Asqrt%282%29\"
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