Question

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

Answer 1

24x+16>21+14x
24x-14x>21-16
10x>5
x>5/10
x>0.5
x∈(0.5;∞)

х²-8х+15≥ 0
D=64-60=4
x₁=(8+2*15)/2=38/2=16
х₂=(8-2*15)/2=-22/2= - 11
x∈[-11;16]