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Mathematics, 22.02.2021 22:10 HammondE

Ill give u brainlest pls help set up the following addition using a vertical format and find the sum of the given polynomials.

3x2 + 2x - 5 and -4 + 7x2

10 x2 + 2 x - 9
- x2 + 9 x - 9
21 x2 + 2 x + 20
10 x2 - 5 x - 1

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