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Mathematics 11 Online
OpenStudy (anonymous):

Choose the correct simplification of the expression -5x2(4x - 6x2 - 3). 30x4 - 20x3 + 15x2 -11x4 - x3 - 8x2 -30x4 + 20x3 - 15x2 30x4 + 20x3 + 15x2

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