## Intermediate Algebra for College Students (7th Edition)

$3x^3y^4(5xy^2-y+4x)$
The GCF of the two terms is $3x^3y^4$. So $15x^4y^6-3x^3y^5+12x^4y^4=3x^3y^4\cdot5xy^2-3x^3y^4\cdot(y)+3x^3y^4\cdot4x=3x^3y^4(5xy^2-y+4x)$