Question

If x+¹/x 7 find the value of x³+¹/x³

Answer 1

x+1/x=7;
Formula(x+1/x)³ =x³ + 1/x³+ 3(7)
7³= x³+ 1/x³+21
343-21=x³+ 1/x³
322=x³+1/x³

Answer 2

Answer:

I don't know this answer