Respuesta :

Answer:

9x^2 - 6x + 1.

Step-by-step explanation:

(6x^2-x+8) - (5x-3x^2+7)          Distribute the negative over second brackets:

= 6x^2 - x + 8 - 5x + 3x^2 - 7

= 9x^2 - 6x + 1.

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