4x - 16 + 9x - 81 = 2(x2 - 9x - 4x + 36).Алгебра. Решить с помощью разложения на множители 9x^4-24x^3+16x^2=0.tatsach. Ответ: Объяснение: (4x-6) - (9x-4) = 18.
Решить с помощью разложения на множители... | Mathway
Решение: 9х = -4 x = -4 / 9 х = -0.444444444444444.sqrt(x - 1) = x. (x - 1)^(1/3) = 4*x.9x^2=4. x^2=4/9. x1=2/3 и x2=-2/3.
![Решить с помощью разложения на множители... | Mathway Решить с помощью разложения на множители... | Mathway](https://i0.wp.com/hi-static.z-dn.net/files/d46/e4f43db8d1c4263cdaa87f53a2ecd960.jpeg)
(4x-6) - (9x-4) = 18 дам 25 баллов - Школьные Знания.com
Simple and best practice solution for 9x+4x= equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your...(x+4)×(-x-4)+3(2x-1)= ?Yes 9x4 will equal 36 so if you know your 4 timesbored like alwaysma b just call mebut not in to it right nowso i said hib yow you goodi hang up like out of h meget use to i9x4=36.
Решение:
Умножим обе части уравнения на (х - (*4*))(х - 4) для того, чтобы избавиться от знаменателей.
4(x - 4) + (*4*)(x - (*4*)) = 2(x - 4)(x - (*4*))
Раскроем скобки.
4x - 16 + 9x - 81 = 2(x2 - 9x - 4x + 36)
Перенесем всё в левую часть с противоположным знаком.
13х - 97 - 2х2 + 26х - 72 = 0
Приведем подобные слагаемые и домножим обе части уравнения на -1.
2х2 - 39х + 169 = 0
Получили квадратное уравнение. Решаем через дискриминант.
D = b2 - 4ac = 392 - 4 · 2 · 169 = 169, √D = 13
x1 = (-b + √D)/2a = (39 + 13)/4 = 13
x2 = (-b - √D)/2a = (39 - 13)/4 = 6,5
Ответ: 13; 6,5.
#678
Algebra Archive | December 08, 2017 | Chegg.com
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