Ответ:
Пошаговое объяснения:
5х² - 4х = 0
х * (5х - 4) = 0
х₁ = 0 5х - 4 = 0
5х = 4
х₂ = 4/5 = 0,8
_____________________________________
8 + 4х (3х - 5) = 12
8 + 12х - 20 = 12
12х = 12 + 20 - 8
12х = 24
х = 24 : 12
х = 2
_______________________________________
5х - 2 7х
----------- + 8 = --------
3 2
5х - 2 + 24 7х
----------------- = --------
5х + 22 7х
------------ = --------
2 * (5х + 22) = 7х * 3
10х + 44 = 21х
10х - 21х = - 44
- 11х = - 44
х = - 44 : (- 11)
х = 4
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Answers & Comments
Ответ:
Пошаговое объяснения:
5х² - 4х = 0
х * (5х - 4) = 0
х₁ = 0 5х - 4 = 0
5х = 4
х₂ = 4/5 = 0,8
_____________________________________
8 + 4х (3х - 5) = 12
8 + 12х - 20 = 12
12х = 12 + 20 - 8
12х = 24
х = 24 : 12
х = 2
_______________________________________
5х - 2 7х
----------- + 8 = --------
3 2
5х - 2 + 24 7х
----------------- = --------
3 2
5х + 22 7х
------------ = --------
3 2
2 * (5х + 22) = 7х * 3
10х + 44 = 21х
10х - 21х = - 44
- 11х = - 44
х = - 44 : (- 11)
х = 4
Verified answer
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