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Mathematics 15 Online
OpenStudy (anonymous):

(9+8x+5x^2+6x^3)(8-8x+5x^2-6x^3) just add I need to check my answer please

OpenStudy (anonymous):

I got -36x^6-71x^4-6x^3+21x^2-8x+72

OpenStudy (anonymous):

same here -36x^6 -71x^4 -6x^3 + 21x^2 -8x + 72

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