Solution - Factoring multivariable polynomials

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "k9"   was replaced by   "k^9".  1 more similar replacement(s).

Step  1  :

Trying to factor a multi variable polynomial :

 1.1    Factoring    -k⁹ + 7 + c⁸¹²g 

Try to factor this multi-variable trinomial using trial and error 

 Factorization fails

Final result :

  -k9 + 7 + c812g