Question

If x + 1/x = 4, then find x³ + 1/x³.​

Answer 1

Answer:

hey mate here is ur ans

Step-by-step explanation:

x+1/x = 4 x²+1/x² =( x+1/x) ²-2x.1/x = 16 -2 = 14

x³+1/x³ = (x+1/x) (x²+1/x²-1/x.x )

= (x+1/x) (x²+1/x²)

= 4(14) = 56

hope it help u