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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 8: tìm x biết a,3x.(x-2)+x-2=0 b,2.(x+2)-x^2-3x=0 c,4x^2-25-(2x-5).(2x+7)=0 d,x^3+27+(x+3).(x-9)=0 e,5x.(3x+4)-6x-8=0 g,(x-2).(x^2+2x+7)+2.(x^2-4)-5.(x-2)=0 giúp mình vs mình cần gấp { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { ...

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