Question

Решите уравнение:
4×|5-|3-4х||+8=20
Плиз

Answer 1

$4 times |5 - |3 - 4x| | + 8 = 20 \ 4 times |5 - |3 - 4x| | = 12 \ |5 - |3 - 4x| | = 3 \ \ 5 - |3 - 4x| = 3 \ 5 - |3 - 4x| = - 3 \ \ | 3 - 4x| = 2 \ |3 - 4x| = 8 \ \ 3 - 4x = 2 \ 3 - 4x = - 2 \ 3 - 4x = 8 \ 3 - 4x = - 8 \ \ 4x = 1 \ 4x = 5 \ 4x = - 5 \ 4x = 11 \ \ x = frac{1}{4} \ x = frac{5}{4} \ x = - frac{5}{4} \ x = frac{11}{4}$
Ответ: -5/4; 1/4; 5/4; 11/4.