Mathematics, 21.05.2021 16:50 miner12924owhu4d

The function h(x) = -2x² - 6x + 56 represents the approximate height of an object seconds after it is launched. How many seconds does it take the object to hit the ground?

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The function h(x) = -2x² - 6x + 56 represents the approximate height of an object seconds after it is launched. How many seconds does it take the object to hit the ground?​

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The function h(x) = -2x² - 6x + 56 represents the approximate height of an object seconds after it is launched. How many seconds does it take the object to hit the ground?