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

Toán Lớp 8: (2x-1)(x-5)-x(4+2x) thực hiện phép tính

Toán Lớp 8: (2x-1)(x-5)-x(4+2x) thực hiện phép tính

Comments ( 2 )

  1. ~ Bạn tham khảo ~
    (2x-1)(x-5)-x(4+2x)
    =2x(x-5)-(x-5)-4x-2x^2
    =2x^2-10x-x+5-4x-2x^2
    =5-15x

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

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