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Mathematics 13 Online
OpenStudy (anonymous):

Simplify. a) (3xy3)(2x3y) b) 2y(2y + 3y2) – y2(3 – y)

OpenStudy (noorik.):

a) (3xy^3)(2x3y)=18x^2y^3 b) 2y(2y+3y^2)-y^2(3-y)=4y^2+6y^3-3y^2+y^3=7y^3+y^2

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