Question

Please Answer The Question Below As Fast As Possible Who Answers First Get's Brainliest..

Answer 1

Answer:

Step-by-step explanation:

Hope this helps u !!

Answer 2

Answer:

110

Step-by-step explanation:

Using the expansion

(a + b)³ = a³ + b³ + 3ab(a + b)

Given

x + $\frac{1}{x}$ = 5 ( cube both sides )

(x + $\frac{1}{x}$ )³ = 5³ = 125 ← expand left side using identity

x³ + $\frac{1}{x^3}$ + 3(x × $\frac{1}{x}$ )(x + $\frac{1}{x}$ ) = 125

x³ + $\frac{1}{x^3}$ + 3(1)(5) = 125

x³ + $\frac{1}{x^3}$ + 15 = 125 ( subtract 15 from both sides )

x³ + $\frac{1}{x^3}$ = 110