B1: a) 15x^2 y^2 – 6 x^2y -3x^2y^2 : 6x^2y b) 6x^3 – 7x^2 – x + 2 : 2x + 1 c) x^4 + x^2 – x^3 + 3x : x^2 + 3 – 2x Jup em với ạ:((

Question

B1:
a) 15x^2 y^2 – 6 x^2y -3x^2y^2 : 6x^2y
b) 6x^3 – 7x^2 – x + 2 : 2x + 1
c) x^4 + x^2 – x^3 + 3x : x^2 + 3 – 2x
Jup em với ạ:((

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Faith 10 phút 2021-09-07T12:44:46+00:00 1 Answers 0 views 0

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    2021-09-07T12:46:15+00:00

    a) Ta có

    $15x^2 y^2 – 6 x^2y -3x^2y^2 = 12x^2y^2 – 6x^2y$

    Khi đó

    $(12x^2y^2 – 6x^2y): 6x^2y = 2y-1$

    b) Ta có

    $ (6x^3 – 7x^2 – x + 2) : (2x + 1) = 3x^2 – 5x + 2$

    c) Ta có

    $(x^4 + x^2 – x^3 + 3x) : (x^2 + 3 – 2x )= (x^4 – x^3 + x^2 + 3x): (x^2-2x+3)$

    $= x^2 + x + 3$ dư $9x + 9$

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35:5x4+1-9:3 = ? ( )