Question

x+1/x=5 then find the value of x^3 +1/x^3​

Answer 1

your answer is given below

$\frac{x + 1}{x} = 5 \\ \\ x + 1 = 5x \\ \\ 4x = 1 \\ \\ x = \frac{1}{4 } \\ \\ {x}^{3} = \frac{1}{64} \\ \\ = > {x}^{3} + \frac{1}{ {x}^{3} } \\ \\ = > \frac{1}{64} + 64 \\ \\ = > \frac{1 + 4096}{64} \\ \\ = \frac{4097}{64} \\ \\ hope \: it \: helps \: you$