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(-7x^2+5x+4)+(9x^2-2x-6)+(3x^2+4x)
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(-7x^2+5x+4)+(9x^2-2x-6)+(3x^2+4x)

User Rippo
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1 Answer

4 votes

Answer:

5 x^2 + 7 x − 2

Explanation:

User NiVeR
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