17-09-2019
Mathematics

contestada

(-5x² + 5x – 8) + (-x² – x– 9)

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Аноним Аноним

17-09-2019

Answer:

-6x^2 + 4x - 17.

Step-by-step explanation:

(-5x² + 5x – 8) + (-x² – x– 9) :

= -5x^2 + 5x - 8 - x^2 - x - 9

= -6x^2 + 4x - 17.

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