Question

x^3 1/x^3 = 18, the find the value of x +1/x​

Answer 1

Answer:

$x + \frac{1}{x} = 3$

This is the answer.

Step-by-step explanation:

According to question,

${x}^{3} + \frac{1}{ {x}^{3} } = 18$

》

$( {x + \frac{1}{x} })^{3} - 3(x + \frac{1}{x} ) = 18$

now solving this equation will take too much time so for time saving and fast calculation we should put values and check instead of solving.....

so , on value( x+1/x) =3 we get LHS=RHS .....

Hope it helps! mrk as brainliest!