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

Toán Lớp 8: Tính 6x³y. 2xy= A 8x⁴y³ B – 12x³y² Có -12x⁴y³ D 12x⁴y²

Toán Lớp 8: Tính 6x³y. 2xy=
A 8x⁴y³
B – 12x³y²
Có -12x⁴y³
D 12x⁴y²

Comments ( 2 )

  1. Giải đáp:
    D.12x^4y^2
    →6x^3y.2xy
    =12x^4y^2

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

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