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Den Kasyanov asked Jul 26, 2022

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40 votes

Can you help me please thank you

Mathematics
high-school

Den Kasyanov asked Jul 26, 2022

by Den Kasyanov

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1 Answer

27 votes

Answer:

6. 4x^2 + x - 1
7. 3x^2 + 4x + 4

Step-by-step explanation:

(3x^2 + x + 8) + (x^2 - 9)
4x^2 + x - 1

(5x^2 + 8x - 2) - (2x^2 - 4x + 6)
3x^2 + 4x + 4

Singpolyma answered Jul 30, 2022

by Singpolyma

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