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

Toán Lớp 8: Thực hiện phép tính: $d)$ $(2x^{4}-$ $5x^{2}$ $+x^{3}-3-3x):($ $x^{2}-3)$ $e)$ $(x^{2}+2x+$ $x^{2}-4):(x+2)$ $f)$ $(2x^{3}-$ $5x^{2}

Toán Lớp 8: Thực hiện phép tính:
$d)$ $(2x^{4}-$ $5x^{2}$ $+x^{3}-3-3x):($ $x^{2}-3)$
$e)$ $(x^{2}+2x+$ $x^{2}-4):(x+2)$
$f)$ $(2x^{3}-$ $5x^{2}+6x-15):(2x-5)$

Comments ( 1 )

  1. *d) (2x^4 – 5x^2 + x^3 -3 – 3x) : (x^2 -3)
        = 2x^2 + 1 + x
    *e) (x^2 + 2x + x^2 – 4) : (x+2)
        = (2x^2 + 2x – 4):(x+2)
        = 2x – 2
    *f) (2x^3 – 5x^2 + 6x – 15):(2x – 5)
        = x^2 + 3
    (Ảnh hơi mờ, bạn thông cảm ạ)
     

    toan-lop-8-thuc-hien-phep-tinh-d-2-4-5-2-3-3-3-2-3-e-2-2-2-4-2-f-2-3-5-2

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

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