Solution - Nonlinear equations

Step by step solution :

Step  1  :

Equation at the end of step  1  :

  (2x26 • x) -  36  = 0 
 Step  2  :
 Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   2x²⁷ - 36  =   2 • (x²⁷ - 18) 

Trying to factor as a Difference of Cubes:

 3.2      Factoring:  x²⁷ - 18 

Theory : A difference of two perfect cubes,  a³ - b³ can be factored into
              (a-b) • (a² +ab +b²)

Proof :  (a-b)•(a²+ab+b²) =
            a³+a²b+ab²-ba²-b²a-b³ =
            a³+(a²b-ba²)+(ab²-b²a)-b³ =
            a³+0+0-b³ =
            a³-b³

Check :  18  is not a cube !!
Ruling : Binomial can not be factored as the difference of two perfect cubes

Equation at the end of step  3  :

  2 • (x27 - 18)  = 0 

Step  4  :

Equations which are never true :

 4.1      Solve :    2   =  0

This equation has no solution.
A a non-zero constant never equals zero.

Solving a Single Variable Equation :

 4.2      Solve  :    x²⁷-18 = 0 

 Add  18  to both sides of the equation : 
                      x²⁷ = 18
                     x  =  27th root of (18) 

 The equation has one real solution
This solution is  x = 27th root of 18 = 1.1130

One solution was found :