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aliina [53]
3 years ago
5

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

Mathematics
1 answer:
Elena-2011 [213]3 years ago
3 0

Answer:

-x2+25x-5

Step-by-step explanation:

7x+2x−3x2+9x+5x+8x2−6x2+2x−5

=−x2+25x−5

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