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valeriyayarovay
@valeriyayarovay
July 2022
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решите пожалуйста, желательно с объяснениями
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ProBy
X² - 3x -10 ≥ 0,
D = 9 + 40 = 7²
x1 = 5
x2 = -2
x ≤ -2, x ≥ 5
x² - 9 > 0, x < - 3, x > 3
Значит x < -3 и x ≥ 5
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Answers & Comments
D = 9 + 40 = 7²
x1 = 5
x2 = -2
x ≤ -2, x ≥ 5
x² - 9 > 0, x < - 3, x > 3
Значит x < -3 и x ≥ 5