Answer :

1234kidus

Answer: 5x^{2} +3x + 4

Hope this helped! :)

PirateApple

Answer:

(X^2 + 2x + 7) + (4x^2 + x - 3) =

x^2 + 2x + 7 + 4x^2 + x - 3 =

5x^2 + 3x + 4

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