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Mathematics 4 Online
OpenStudy (anonymous):

(x+y)(9x^2-2xy+7y^2) find the product of the polynomails

OpenStudy (campbell_st):

well you can split the problem into \[x(9x^2 -2xy+7y^2) + y(9x^2 - 2xy + 7y^2)\] distribute and then collect like terms.

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