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23-06-2017
Mathematics

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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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Banabanana Banabanana

23-06-2017

(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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