1)24х+16больше21+14х
2)х²-8х+15больше или равно 0

24x+16>21+14x24x-14x>21-1610x>5x>5/10x>0.5x∈(0.5;∞)х²-8х+15≥ 0D=64-60=4x₁=(8+2*15)/2=38/2=16х₂=(8-2*15)/2=-22/2= - 11x∈[-11;16]