Question

2la puterea 51+2 la puterea 52+2 la puterea 53=xori
2la puterea 50
unde xverifica egalitatea

Answer 1

$2 ^{51} +2 ^{52}+2 ^{53}=x*2 ^{50}$⇒$2 ^{50} *(2 ^{1} +2 ^{2}+2 ^{3})=x*2 ^{50} |:2 ^{50}$⇒$2+4+8=x$⇒$x=14$