Question

{4√5+8√3}2=x+64√Y. then x+y =??

Answer 1

LHS ={4√5+8√3}²

=(4√5)²+(8√3)²+2(4√5)(8√3)

= 80+193+64√15

= 273+64√15

=x+64√5[ Given]

x = 273 ,y=15

Therefore,

x=273 , y = 15

••••