Решите неравенство:27-(1,2-y)(-y-1,2)

Question

Решите неравенство:27-(1,2-y)(-y-1,2)<1,44-y²-y​

Answer 1

27-(-y+1.2)×(-y-1.2)<1.44-y^2-y</p>

27-((-y)^2-1.2^2)<1.44-y^2-y</p>

27-(y^2-36/25)<1.44-y^2-y</p>

27-y^2+36/25<1.44-y^2-y</p>

27+36/25<1.44-y</p>

711/25<1.44-y</p>

y<1.44-711/25</p>

y<36/25-711/25</p>

y<-27</p>