Solution - Nonlinear equations

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  x25 - 21  = 0 

Step  2  :

Solving a Single Variable Equation :

 2.1      Solve  :    x²⁵-21 = 0 

 Add  21  to both sides of the equation : 
                      x²⁵ = 21
                     x  =  25th root of (21) 

 The equation has one real solution
This solution is  x = 25th root of 21 = 1.1295

One solution was found :