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Need help.  multiply and simplify answer,  2x(x-9y)²
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Need help.  multiply and simplify answer,  2x(x-9y)²

User MaNDOOoo
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2x(x-9y)^2=\\ 2x(x^2-18xy+81y^2)=\\ 2x^3-36x^2y+162xy^2
User Aviran Cohen
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