3x^3y + 12xy - 9x^2y - 36y Rewrite the expression completely factored. Show the steps of your work.

Factor 3 out of 12:

3x^3y + 3 • 4xy - 9x^2y - 36y

Factor out 3 out of - 9:

3x^3y + 3 (4xy) + 3 • - 3x^2y - 36y

Factor 3 out of - 36:

3 (x^3y) + 3 (4x7) + 3 (-3x^2y) + 3 (-12) y

Factor 3 out of 3 (x^3y) + 3 (-12y):

3 (x^2y + 4xy) + 3 (-3x^2y) + 3 (-12y)

Factor 3 out of 3 (x^3y + 4xy) + 3 (-3x^2y):

3 (x^2y + 4xy - 3x^2y) + 3 (-12y)

Factor 3 out of

3 (x^3y + 4xy - 3x^2y) + 3 (-12y):

3 (x^3y + 4xy - 3x^2y - 12y)