Please factor -8.4x^3y^4 - 3.6x^2y^5 - 4.8x^4y^3

Answer 1

= 1.2x^2 y^3(7xy - 3y^2 - 4x^2y)

Answer 2

Hmmm.

-1.2x^2y^3(7xy + 3y^2 + 4x^2)
-1.2x^2y^3(x+y)(4x+3y)