Ответ:
Объяснение:
х² - 3x - 4 > 0
х² - 3x - 4 = 0
D = 3² - 4 * 1 * (- 4) = 9 + 16 = 25
√ 25 = 5
х₁ = (3 + 5)/2 = 4
х₂ = (3 - 5)/2 = -1
(- ∞; - 1) ∪ ( 4; + ∞)
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Ответ:
Объяснение:
х² - 3x - 4 > 0
х² - 3x - 4 = 0
D = 3² - 4 * 1 * (- 4) = 9 + 16 = 25
√ 25 = 5
х₁ = (3 + 5)/2 = 4
х₂ = (3 - 5)/2 = -1
(- ∞; - 1) ∪ ( 4; + ∞)