Question

solve this qn pls Q no 2

Answer 1

this answer is 121 may be

Answer 2

suppose requires natural number =x

sum of natural number and its square root =x+x

putting 

x=yx=y2

y2+y=132y2+12y−11y−132=0y(y+12)−11(y+12)=0(y+12)(y−11)y=11x=11x=(11)2x=121