Question 547951
<pre>
1/2 sqrt(18) - 3/sqrt(2) - 9 sqrt(50)
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If this is {{{1/(2sqrt(18)) - 3/sqrt(2) - 9sqrt(50)}}}, as the other person suggests, the correct answer is NOT - 18, as he/she states.
The correct, simplified answer would be: {{{(- 1671sqrt(2))/36}}}
However, if it's {{{(1/2)sqrt(18) - 3/sqrt(2) - 9sqrt(50)}}}, correct SIMPLIFICATION is
       as follows: {{{(1/2)sqrt(9 * 2) - 3/sqrt(2) - 9sqrt(25*2)}}}
                          {{{(1/2)(3)sqrt(2) - 3/sqrt(2) - 9(5)sqrt(2)}}}
                          {{{3sqrt(2)/2 - 3/sqrt(2) - 45sqrt(2)}}}
                          {{{3sqrt(2)/2 - 3sqrt(2)/(sqrt(2)sqrt(2)) - 45sqrt(2)}}}
                          {{{3sqrt(2)/2 - 3sqrt(2)/2 - 45sqrt(2)}}} = {{{highlight(- 45sqrt(2))}}}</font></font></font></b></pre>