Question 147717
{{{3(20+4)/(2(9)-4^2)}}} Distribute and get {{{(60+12)/(18-4^2)}}}. Simplify 4 squared and get {{{(60+12)/(18-16)}}}.  Then simplify that to {{{72/2}}} or simply {{{36}}}. And you're done.




{{{3sqrt(5)(8)+41/(12-3(16-13))}}} First simplify {{{3sqrt(5)(8)}}} to {{{24sqrt(5)}}}.  Then simplify {{{12-3(16-13)}}} to {{{12-3(3)}}} and then {{{12-9}}}. or {{{3}}}. So you get {{{24sqrt(5) + 41/3}}}. And you're done.