Mathematics, 11.11.2020 03:10 pleasehelpme71

Simplify the sum (3x^4 + 2x^2 + 1) + (5x^4 - 9x - 7)

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Simplify the sum (3x^4 + 2x^2 + 1) + (5x^4 - 9x - 7)...

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