September 2021 1 9 Report
Помогите пожалуйста за 99 баллов!
№547

1)x²-3x-4<0 2)-x²-3x-4≥0
3) x²-8x-9<0 4)-x²-2x²+48<0
5)-x²+x+6<0 6) 2x+3x-5≥0

№548
1)6x²-7x+1<0 2) 25x²-10x+1≥0
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