<PRE><B>Question 446077</B>
how do you work out the problem square root of 10 minus square root of 2/5.
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how do you work out the problem square root of 10 minus square root of 2/5.
&amp;#8730;10-&amp;#8730;(2/5)
&amp;#8730;10-&amp;#8730;2/&amp;#8730;5
perform subtraction
(&amp;#8730;10*&amp;#8730;5-&amp;#8730;2)/&amp;#8730;5
(&amp;#8730;50-&amp;#8730;2)/&amp;#8730;5
(5&amp;#8730;2-&amp;#8730;2)/&amp;#8730;5
4&amp;#8730;2/&amp;#8730;5
rationalize denominator, multiply both numerator and denominator by&amp;#8730;5
4&amp;#8730;10/5 (ans)</PRE>