Question

Please solve this in the attachment ​

Answer 1

1) x+1/x=4

squaring both side

(x+1/x)²=x²+(1/x)²+2×x×1/x=(4)²

x²+1/x²+2=16

x²+1/x²=16-2

Therefore,

x²+1/x²=14

Answer 2

Answer:

a)x+1/x=4

(x+1/x)²=4²

x²+1/x²+2*x*1/x=16

x²+1/x²+2=16

x²+1/x²=14

b)

(x²+1/x²)²=14²

x⁴+1/x⁴+2*x²*1/x²=256

x⁴+1/x⁴=254

C)

p-1/p=7

p²+1/p²-2=49

p²+1/p²=51

d)

p⁴+1/p⁴+2=51²

p⁴+1/p⁴=2601-2

p⁴+1/p⁴=2599

HOPE IT HELPS