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Mathematics 9 Online
OpenStudy (anonymous):

(3 - 13x - 7x2) - (5x2 + 12x - 10) -12x2 - 25x - 7 -12x2 - 25x + 13 -12x2 - x - 7 3x2 - 25x - 2

OpenStudy (anonymous):

-12x^2 -25x + 13, you undersztand why?

OpenStudy (anonymous):

not really

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