Respuesta :

Answer:

-2x^2 +8x-10

Step-by-step explanation:

(x^2+3x−7)−(3x^2−5x+3)

Distribute the minus sign

(x^2+3x−7)−3x^2+5x-3

I like to line them up vertically

  x^2 +3x−7

−3x^2+5x-3

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-2x^2 +8x-10