Canada | Nice Olympiad Math problem | Can you solve ?

[@PradipChakraborty-ml2yk]

Sq. on both side ,x+(-x)+2√x.√-x =16 then 2√x.√-x=16, √x.√-x= 8, sq. on both side, x.-x=64, -x*2=64, x= (+,-)i8

[@ChidexOnlineMathClass01]

@@PradipChakraborty-ml2yk
Excellent