If $P +\frac{1}{P}$ = 5, then what is the value of $P^3 +\frac{1}{P^3}$ ?

110 95 125 120

110

If x + \(\frac{1}{x}\)  = n then, $x^3 +\frac{1}{x^3}$ = n3 - 3 × n   If $P +\frac{1}{P}$ = 5, The value of $P^3 +\frac{1}{P^3}$  = 53 - 3 × 5 = 110