Question 2798
   
21X^4 + 18X^2 + 36X^3   =   x²(21x² + 18 + 36x)


3T^2  - 5T - 2T^4  =  t(3t - 5 - 2t³)


-3A^10 + 9A^5 - 6A^15  =  a^5(-3a^5 + 9 - 6a^10)


9M^3 - 7M^4 + 8M^2  =  m²(9m - 7m² + 8)