Question

РЕШИТЕ СРОЧНО!!!!!!!!!!

Answer 1

у"-7у'+12у= 0

r^2 - 7r + 12 = 0

D = (-7)^2 - 4 * 1 * 12 = 49 - 48 = 1

r1 = (7-1) / 2 = 3

r2 = (7+1) / 2 = 4

y = C1 * e^3x + C2 * e^4x

Ответ: вариант 1).