What is #2sqrt3 - 3sqrt45 - sqrt27#?
1 Answer
Feb 15, 2016
#=-9sqrt5 -sqrt3# #" " or " "# #-1(9sqrt5 +sqrt3)#
Explanation:
Simplify :
Break down the factor of 45 and 27 so that one of that factor is a perfect square.
#2sqrt3 - 3sqrt(9*5) -sqrt(9*3)#
Square root of 9 is 3 ....
#=2sqrt3 -9sqrt5 -3sqrt3#
Simply the answer ....
#=-9sqrt5 -sqrt3# #" " or " "#
#-1(9sqrt5 +sqrt3)#