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10 June, 09:56

Simplify: (7x2 - 8x - 4) + (-2x2 + 3x + 5) + (5x2 - 10x - 8)

10x2 + 15x - 7

10x2 + 5x - 7

10x2 - 15x - 7

10x2 - 15x - 9

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  1. 10 June, 13:04
    0
    (7x² - 8x - 4) + (-2x² + 3x + 5) + (5x² - 10x - 8) =

    7x² - 8x - 4 - 2x² + 3x + 5 + 5x² - 10x - 8 =

    10x² - 15x - 7
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