22х+15-5х^2 》0 , решить неравенства

- 5x² + 22x + 15 = 0
a=-5
b=22
c=15

D = 22² - 4*(-5)*15 = 484 + 300 = 784 = 28²

x1 = (-22 - 28) / 2×(-5) = -50 /-10 = 5
x2 = (-22 + 28) / 2×(-5) = 6 / -10 = - 0,6

-0,6 ≤ x ≤ 5

x∉[-0,6;5]