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Mathematics, 28.10.2019 22:31 suealex6578

(5x2 + 2x + 11) - (7 + 4x - 2x2)
9 - 2x - 2x2
3x2 - 2x + 4
3x2 + 6x + 4
7x2 - 2x + 4

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(5x2 + 2x + 11) - (7 + 4x - 2x2)
9 - 2x - 2x2
3x2 - 2x + 4
3x2 + 6x + 4
7x2...
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