Question

9(x²+1/x²)-27(x+1/x)-10=0 solve​

Answer 1

9(x² + 1 / x²) - 27(x + 1 / x) = 10

9x² + 9 / x² - 27x + 27 / x = 10

(9x² + 9) × x - x² × (27x + 27) = 10

(9x³ + 9x - 27x³ + 27x²) / x³ = 10

-18x³ + 27x² + 9x = 10x³

-18x³ - 10x³ + 27x² + 9x = 0

-28x³ + 27x² + 9x = 0

Hence proved.....