Question

x+1/x=5 then x^3+1/x^3=​

Answer 1

hey mate . ..this is the answer

Answer 2

Answer:

$x + 1 \div x = 5 \\ cubing \: on \: sides \\ we \: get \\ {x}^{3} + 1 \div {x}^{3} + 3(x + 1 \div x) = 125 \\ {x}^{3} + 1 \div {x}^{3} + 3(5) = 125 \\ {x}^{3} + 1 \div {x}^{3} = 125 - 15 = 110$