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6 January, 10:12

Find the difference. (3 - 13x - 7x2) - (5x2 12x - 10)

a. - 12x2 - 25x - 7

b. - 12x2 - 25x 13

c. - 12x2 - x - 7

d. 3x2 - 25x - 2

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Answers (1)
  1. 6 January, 13:14
    0
    To answer the question, distribute the negative sign and combine like terms.

    3 - 13x - 7x² - 5x² - 12x + 10

    (-7x² - 5x²) + (-13x - 12x) + (3 + 10)

    Thus, the answer is letter B. - 12x² - 25x + 13.
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