3(х^2+4х-5x-20)<=0
3x^2+12x-15x-60<=0
3x^2-3x-60<=0 делим на три
x^2-x-20<=0
D=1-4(-20)=81=9^2
x1=1+9/2=5
x2=1-9/2=-4
х принадлежит интервалу [-4;5] это и будет ответ
рррннр және қаласы бойынша мемлекеттік кірістер департаменті оңайлатылған және
Объяснение:
https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/
рррннр және қаласы бойынша мемлекеттік кірістер департаменті оңайлатылған және
Объяснение:
https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/https://vm.tiktok.com/ZSCy98SG/
3(х-5)(х+4)≤0
a > 0 => (x1; x2)
ответ [-4;5]