Question

if x^2+1/x^2=34 find x^3+1/x^3-9​

Answer 1

Answer:

Step-by-step explanation:

x² + 1/x² = 34

x + 1/x = √ (34 + 2) = 6

x³ + 1/x³ = (x + 1/x)^3 - 3 x/x (x + 1/x) = 6^3 - 3 * 6 = 198

answer: 189