crystalallmon11 crystalallmon11

29-01-2021
Mathematics

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( 7x + 2x - 3x2 + 9x) + (5x + 8x2 - 6x2 + 2x - 5)

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Аноним Аноним

29-01-2021

Answer:

-x2+25x-5

Step-by-step explanation:

7x+2x−3x2+9x+5x+8x2−6x2+2x−5

=−x2+25x−5

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