Question 609167
  <pre><font face = "Tohoma Ital" size = 3 color = "indigo"><b> 
Hi
{{{8sqrt( 63) - 5sqrt( 7) =8sqrt( 9*7) - 5sqrt( 7) =8*3sqrt(7) - 5sqrt( 7)= 19sqrt(7)}}}   ||Note: Finding same sqrt, so as to combine Like Terms
 {{{4sqrt(2) + 6sqrt(18) = 4sqrt(2) + 6sqrt(9*2)=  4sqrt(2) + 6*3sqrt(2)= 22sqrt(2)}}}
 5square root 48 - 4square root 75   ||use {{{sqrt(3)}}}, {{{20sqrt(3) - 20sqrt(3) = 0}}}
 5square root 2 + 3square root 50 - square root 75 , {{{20sqrt(2)-5sqrt(5)}}}