Question 1058504
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Rationalize the denominator.
(3√10)/(2+√10)


<pre>
I so far got...

(3&#8730;10)/(2+&#8730;10) * (2-&#8730;10)/(2-&#8730;10)     - Correct

[(3&#8730;10)(2+&#8730;10)]/(2)^2+(&#8730;10)^2        - Wrong //  Must be {{{((3*sqrt(10))*(2-sqrt(10)))/(2^2 - (sqrt(10))^2)}}}

[(6&#8730;10)-(3&#8730;100)]/4-10                - Correct.
</pre>

Now replace {{{sqrt(100)}}} by 10 and replace (4-10) by (-6).