littlekmiami88 littlekmiami88

19-10-2019
Mathematics

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Which polynomial, when added to the polynomial 5x^2-3x-9 is equivalent to: 18

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jimrgrant1 jimrgrant1

19-10-2019

Answer:

- 5x² + 3x + 27

Step-by-step explanation:

To find the polynomial subtract 5x² - 3x - 9 from 18, that is

18 - (5x² - 3x - 9) ← distribute parenthesis by - 1

= 18 - 5x² + 3x + 9

= - 5x² + 3x + 27 ← required polynomial

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