Question

if x+1/x=3,find x²+1/x²​

Answer 1

x² + 1/x² = 7

Step-by-step explanation:

x+1/x=3

squaring both sides

x² + 1/x² + 2 = 9

x² + 1/x² = 9 -2

x² + 1/x² = 7