Kerri P. answered • 12/19/19

Certified Mathematics Teacher Grades 7-12

Always start with GCF factoring. The GCF of 54x^{3}y - 16y^{4} is 2y so we have:

54x^{3}y - 16y^{4}

2y(27x^{3} - 8y^{3}) which is a difference of cubes where a = 3x and b is 2y

2y(3x - 2y)(9x^{2} + 6xy + 4y^{4})

Hope this helps!

Kerri P.

12/19/19