Tính m(x)-n(x) M(x)= 5x^3-2x^2+2x-5 N(x)= 5x^3+3x^2-6x+5

Question

Tính m(x)-n(x)
M(x)= 5x^3-2x^2+2x-5
N(x)= 5x^3+3x^2-6x+5

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Vivian 2 tháng 2021-10-01T11:46:25+00:00 1 Answers 8 views 0

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    2021-10-01T11:48:14+00:00

    M(x) – N(x) = 5x³ – 2x² + 2x – 5 – (5x³ + 3x² – 6x + 5)

                      = 5x³ – 2x² + 2x – 5 – 5x³ – 3x² + 6x – 5

                      = -5x² + 8x – 10

    Vậy M(x) – N(x) = -5x² + 8x – 10

            

     

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