Question

please solve it fast​

Answer 1

Answer:

8

this is the correct answer

Answer 2

Answer:

2

Step-by-step explanation:

$(x + \frac{1}{x} )^{3} = {2}^{3} = 8$

${x}^{3} + {( \frac{1}{x}) }^{3} + 3 \times x \times \frac{1}{x} \times (x + \frac{1}{x} ) = 8$

${x}^{3} + \frac{1}{x ^{3} } + 3 \times 1 \times 2 = 8$

${x}^{3} + \frac{1}{ {x}^{3} } = 8 - 6 = 2$

ok