Question 374751
Simplify and add or subtract wherever possible.

√32-5√72-4√50
 
 sol'n:
  √32-5√72-4√50factor and find the perfect square # inside the radical sign.
  =√(16x2)-5√(36x2)-4√(25x2)
  =4√2-(5x6)√2-(4x5)√2
  =(4-30-20)√2
  =-46√2 ----answer