Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "r2"   was replaced by   "r^2".  1 more similar replacement(s).

Step  1  :

Equation at the end of step  1  :

  (3 • (r3)) -  2r2
 Step  2  :

Equation at the end of step  2  :

  3r3 -  2r2

Step  3  :

Step  4  :

Pulling out like terms :

 4.1     Pull out like factors :

   3r³ - 2r²  =   r² • (3r - 2) 

Final result :

  r2 • (3r - 2)