" If "x^(2)+(1)/(x^(2))=18" find "x-(1)/(x)=?

x^(3)-(1)/(x^(3)) if "x^(2)+(1)/(x^(2))=18

If 2(x^(2) + 1)= 5x , find x- (1)/(x)

If x^(2)+(1)/(x^(2))=18, find the values of x+(1)/(x) and -(1)/(x)

Find the term independent of x (constant term) in the following expansion: (i) (x^(2)-(1)/(3x))^(9) " "(ii) (x-(1)/(x))^(10) (iii) (3x-(2)/(x^(2)))^(18) " "(iv) (1)/(x^(n))(1+x)^(2n) (V)(3sqrt(x)+(1)/(2(3sqrt(x))))^(18)" "(vi)((3x^(2))/(2)-(1)/(3x))^(6)

If x+(1)/(x)=6, find x^(2)+(1)/(x^(2))

If x+(1)/(x)=3, then find x^(2)-(1)/(x^(2)),x^(2)+(1)/(x^(2))

If x^(2)+(1)/(x^(2))=18 then find the value of x^(3)-(1)/(x^(3))

If x = (1)/(x- 5) , find: x^(2)- (1)/(x^(2))

if x+(1)/(x)=5 then find x^(2)-(1)/(x^(2))

If x+(1)/(x)=6, find :x^(2)+1/x^(2)