Question

Решите неравенство плиз

Answer 1

27-(1,2-y)(-y-1,2)<1,44-y2-y
27-(-y+1,2)•(-y-1,2)<1,44-y2-y
27-((-y)2-1,2вверху2)<1,44-y2-y
27-(y2-(6/5)2)<1,44-y2-y
27-(y2-36/25)<1,44-y2-y
27-y2+36/25<1,44-y2-y
27+36/25<1,44-y
711/25<1,44y
y<1,44-711/25
y<36/25-711/25
y<-27
все 2 возле y это степень и возле 1,2, 6/5