Question

-x-1/x=3 find x^2+1/x^2 plz help me on this

Answer 1

Answer:

Step-by-step explanation:

-x-1/x = 3               x+1/x = -3

squaring on both

(x+1/x)² = 9

x²+1/x² + 2 = 9

x²+1/x² = 9-2

x²+1/x² = 7