Solution - Other Factorizations

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x2"   was replaced by   "x^2". 

Step  1  :

Equation at the end of step  1  :

  121 -  26x2

Step  2  :

Trying to factor as a Difference of Squares :

 2.1      Factoring:  121-64x² 

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 :  121  is the square of  11 
Check : 64 is the square of 8
Check :  x²  is the square of  x¹ 

Factorization is :       (11 + 8x)  •  (11 - 8x) 

Final result :

  (8x + 11) • (11 - 8x)