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14 February, 14:51

Subtract:

4x^3 - 6x^2+8x - 9 from 7x^3 - 16x + 18

Also:

From the sum of a^2 - 2ab + b^2 and 2a^2 + 2ab + b^2 subtract the sum of a^2 - b^2 and a^2 + ab + 3b^2

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Answers (1)
  1. 14 February, 15:02
    0
    Answer: first question answer is 3x^3+6x^2-24x+27

    Second question answer=a^2-ab
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