Question 214789
1: {{{(3sqrt(6)-9sqrt(5)) (5sqrt(6)+15sqrt(5))}}}
2: {{{15(6)^2-4sqrt(30)+45sqrt(30)-135*5}}}
3: {{{90 - 0 - 675}}}
4: {{{-585}}}<br>
There is an error in line 2. In spite of this lines 3 and 4 are still correct!?
Line 2 should be
2: {{{15(6)-45sqrt(30)+45sqrt(30)-135*5}}}
or
2: {{{15(sqrt(6))^2-45sqrt(30)+45sqrt(30)-135*(sqrt(5))^2}}}