Question

If x-1/x =5. Then find x^4+1/x^4

Answer 1

Answer:

x-1/x=5

x-1=5x

4x=-1

x=-1/4

x⁴+1/x⁴

(-1/4)⁴+(-4)⁴

1/256+256

256.0039 is your answer

Answer 2

Answer:

527

Step-by-step explanation:

x+1/x = 5

(x+1/x)² = x²+1/x²+2

(5)² = x²+1/x²+2

25-2 = x²+1/x² => 23

(x²+1/x²)² = x⁴+1/x⁴+2

(23)² = x⁴+1/x⁴+2

529-2 = x⁴+1/x⁴

527 = x⁴+1/x⁴

hope this helps