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Мари7890
@Мари7890
August 2021
2
10
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Решите неравенства:
x2-64<0
X2-36>0
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Answers & Comments
twd2015funny
X² - 64 < 0
(x - 8)(x + 8) < 0
Нули: x = -8; 8.
|||||||||||||||||||||||||||||||
--------------0----------------------0----------------> x
+ -8 - 8 +
Ответ: x ∈ (-8; 8).
x² - 36 > 0
(x - 6)(x + 6) > 0
Нули: x = -6; 6.
||||||||||||||||||| |||||||||||||||||||||||||||||||||||
--------------0----------------------0---------------------> x
+ -6 - 6 +
Ответ: x ∈ (-∞; -6) U (6; +∞).
2 votes
Thanks 1
Dимасuk
Тут неравенства, а не уравнения.
Dимасuk
Verified answer
(х-8)(х+8)<0
х=8, х= -8
(х-6)(х+6)>0
х=6, х= -6
3 votes
Thanks 1
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Answers & Comments
(x - 8)(x + 8) < 0
Нули: x = -8; 8.
|||||||||||||||||||||||||||||||
--------------0----------------------0----------------> x
+ -8 - 8 +
Ответ: x ∈ (-8; 8).
x² - 36 > 0
(x - 6)(x + 6) > 0
Нули: x = -6; 6.
||||||||||||||||||| |||||||||||||||||||||||||||||||||||
--------------0----------------------0---------------------> x
+ -6 - 6 +
Ответ: x ∈ (-∞; -6) U (6; +∞).
Verified answer
(х-8)(х+8)<0х=8, х= -8
(х-6)(х+6)>0
х=6, х= -6