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Solution - Power equations

(x*(6-x241))/((-x2-1)*(x+1)*(x-1))
(x*(6-x^241))/((-x^2-1)*(x+1)*(x-1))

Other Ways to Solve

Power equations

Step by Step Solution

Step  1  :

Equation at the end of step  1  :

  

Step  2  :

Equation at the end of step  2  :

  

Step  3  :

Equation at the end of step  3  :

  

Step  4  :

Equation at the end of step  4  :

  

Step  5  :

            30x3 - 5x244
 Simplify   ————————————
             5x2 - 5x6  

Step  6  :

Pulling out like terms :

 6.1     Pull out like factors :

   30x3 - 5x244  =   5x3 • (6 - x241) 

Step  7  :

Pulling out like terms :

 7.1     Pull out like factors :

   5x2 - 5x6  =   -5x2 • (x4 - 1) 

Trying to factor as a Difference of Squares :

 7.2      Factoring:  x4 - 1 

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =
         A2 - AB + BA - B2 =
         A2 - AB + AB - B2 =
         A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 1 is the square of 1
Check :  x4  is the square of  x2 

Factorization is :       (x2 + 1)  •  (x2 - 1) 

Polynomial Roots Calculator :

 7.3    Find roots (zeroes) of :       F(x) = x2 + 1
Polynomial Roots Calculator is a set of methods aimed at finding values of  x  for which   F(x)=0  

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  x  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  1  and the Trailing Constant is  1.

 
The factor(s) are:

of the Leading Coefficient :  1
 
of the Trailing Constant :  1

 
Let us test ....

  P  Q  P/Q  F(P/Q)   Divisor
     -1     1      -1.00      2.00   
     1     1      1.00      2.00   


Polynomial Roots Calculator found no rational roots

Trying to factor as a Difference of Squares :

 7.4      Factoring:  x2 - 1 

Check : 1 is the square of 1
Check :  x2  is the square of  x1 

Factorization is :       (x + 1)  •  (x - 1) 

Dividing exponential expressions :

 7.5    x3 divided by x2 = x(3 - 2) = x1 = x  7.6      Attempting Polynomial Long Division

   Attempted Long division of
      6 - x241 
   By :
      -x2 - 1 
   Was aborted due to the followinf reason :

   Power of dividend too high for Tiger to process

Step  8  :

Pulling out like terms :

 8.1     Pull out like factors :

   -x2 - 1  =   -1 • (x2 + 1) 

Polynomial Roots Calculator :

 8.2    Find roots (zeroes) of :       F(x) = x2 + 1

     See theory in step 7.3
In this case, the Leading Coefficient is  1  and the Trailing Constant is  1.

 
The factor(s) are:

of the Leading Coefficient :  1
 
of the Trailing Constant :  1

 
Let us test ....

  P  Q  P/Q  F(P/Q)   Divisor
     -1     1      -1.00      2.00   
     1     1      1.00      2.00   


Polynomial Roots Calculator found no rational roots

Final result :

          x • (6 - x241)       
  —————————————————————————————
  (-x2 - 1) • (x + 1) • (x - 1)

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