1.2x^2+x >02.x^2-3x-18≤03.-x^2+x≥3x+14.x(x+9)>3(x-3)
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1.2x^2+x >02.x^2-3x-18≤03.-x^2+x≥3x+14.x(x+9)>3(x-3)
1.2x^2+x >0
2.x^2-3x-18≤0
3.-x^2+x≥3x+1
4.x(x+9)>3(x-3)
1.2x^2+x >02.x^2-3x-18≤03.-x^2+x≥3x+14.x(x+9)>3(x-3)
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1.2x^2+x >02.x^2-3x-18≤03.-x^2+x≥3x+14.x(x+9)>3(x-3)
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