An expression is shown below: 3x3y + 12xy − 9x2y − 36y

Part A: Rewrite the expression by factoring out the greatest common factor. (4 points)

Part B: Factor the entire expression completely. Show the steps of your work. (6 points)

(a)

(b)

Step-by-step explanation:

Given the expression:

Part A

If we consider the terms: in the expression. The common terms are 3 and y.

Therefore the greatest common factor of the terms is 3y.

Factoring this out, we obtain:

Part B

Next, we factor the expression completely

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