Responder:
# x = 961 #
Explicación:
#sqrt (1 + sqrt (3 + sqrt (5 + sqrtx))) = 2 #
o # 1 + sqrt (3 + sqrt (5 + sqrtx)) = 4 #
o #sqrt (3 + sqrt (5 + sqrtx)) = 3 #
o # 3 + sqrt (5 + sqrtx) = 9 #
o #sqrt (5 + sqrtx) = 6 #
o # 5 + sqrtx = 36 #
o # sqrtx = 31 # o # x = 961 #
