Question

if x²+1/x²=9 find the value of x²+1/x⁴​

Answer 1

Answer:

x²+1/x² = 9

squaring both sides

x+1/x = 3

x+1 = 3x

2x= 1

x =1/2

x²+1/x⁴

1/4 + 16

(1 + 64)/ 4

65/ 4