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

Toán Lớp 8: x^2+5x+1/x^2+5/x=4 3x^4-13x^3+16x^2-13x+3=0

Toán Lớp 8: x^2+5x+1/x^2+5/x=4
3x^4-13x^3+16x^2-13x+3=0

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

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