Question 77678
Note: to do a radical sign (like {{{sqrt(3)}}}), simply type: sqrt(3) surrounded by 3 curly brackets (this symbol: { and }) on both sides. Check the source if you want to see it.

{{{2sqrt(3) * 5sqrt(27)}}}


{{{2sqrt(3) * 5sqrt(3*9)}}} Rewrite 27 as 3*9


{{{2sqrt(3) * 5sqrt(3)*sqrt(9))}}} Break up the square root. (ie use this property: {{{sqrt(xy)=sqrt(x)sqrt(y)}}})


{{{(2*5)(sqrt(3) * sqrt(3))*sqrt(9))}}} Group the whole numbers and the {{{sqrt(3)}}} terms together.


{{{10(3)*sqrt(9))}}} Multiply


{{{30*sqrt(9))}}} Take the square root of 9


{{{30*3=90}}} So this is your answer