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

Toán Lớp 9: Rút gọn : (4x^2 – 5x+1)(2x + 3)

Toán Lớp 9: Rút gọn : (4x^2 – 5x+1)(2x + 3)

Comments ( 2 )

  1. (4x²-5x+1)(2x+3)
    = 8x³ + 12x² – 10x² – 15x + 2x + 3 
    = 8x³ + 2x² – 13x + 3 
     

  2. (4x²-5x+1)(2x+3)
    = 8x³ + 12x² – 10x² – 15x + 2x + 3 
    = 8x³ + 2x² – 13x + 3 
    Ta nhân đa thức với đa thức nhé 

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

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