Question

please answer fast l will mark as branliest​

Answer 1

Answer:

the answer is 29/28

mark me as brainliest

Answer 2

solution

x-1/x = 1/3

x-1/x = 1/3(x-1/x)²= x²+1/x² - 2

x-1/x = 1/3(x-1/x)²= x²+1/x² - 2x²+1/x² = 1/9 +2 = 19/9

x-1/x = 1/3(x-1/x)²= x²+1/x² - 2x²+1/x² = 1/9 +2 = 19/9x³-1/x³ = (x-1/x) ( x²+1/x²+x×1/x) = 1/3 × ( 19/9 +1 ) = 1/3 × 28/9

x-1/x = 1/3(x-1/x)²= x²+1/x² - 2x²+1/x² = 1/9 +2 = 19/9x³-1/x³ = (x-1/x) ( x²+1/x²+x×1/x) = 1/3 × ( 19/9 +1 ) = 1/3 × 28/9 x³-1/x³= 28/27