3 years ago

5x^2 - 9 - 7x^2 - x + 1

1 answer:

algol133 years ago

6 0

Answer:

−2x^2−x−8

Step-by-step explanation:

5x^2 - 9 - 7x^2 - x + 1 = −2x^2−x−8

5*x^2-9-7*x^2-x+1 = (-2*x^2)-x-8

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