Question

Afla x din proportia : 65 supra x^3=x^3+1 supra 64

Answer 1

[tex] \frac{65}{x^3} = \frac{x^3+1}{64} \\ x^3(x^3+1)=64\cdot65\\ x^3=64\\ x^3=4^3\\ x=4[/tex]