Question

If x+1/x=7 then find the value of x³+1/x³

Plz help me........

Answer 1

Answer:

337

Step-by-step explanation:

x+1/x=7

to find:x3+1/x3

solution: cubing both side

x3+1/x3+3.x2.1/x+3.x.1/x2=343

x3+1/x3+3x+3/x=343

x3+1/x3+6=343

x3+1/x3=337

Answer 2

Answer:

322

Step-by-step explanation:

Pls refer to the attachment for the detailed solution.