Question

x+1/x =5 then x^3+1/x^3=​

Answer 1

Answer:

Given

x+1 = 5

x

x+1 = 5x

1 = 5x-x

1 = 4x

1/4 = x

Now,

x³+1

x³

= (1/4)³ + 1

(1/4)³

= 1 + 1

64

1

64

= 1+64

64

1

64

= 65 / 64

1 / 64

= 65