Multiply (3x + 3y)^2 (2x + 3y)

I need to simplify by multiplying the algebraic expression
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1 Answer

(3x + 3y)^2(2x +3y) = [9x^2 + 18xy + 9y^2](2x +3y)

                                 = 18x^3 + 36x^2y + 18xy^2 + 27x^2y + 54xy^2 + 27y^3

                                 = 18x^3 + 63x^2y + 72xy^2 + 27y^3
by Level 3 User (3.2k points)

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