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Tatiana [17]
3 years ago
13

Find the sum. (adding and subtracting polynomials)

Mathematics
1 answer:
OverLord2011 [107]3 years ago
7 0

Answer:

(-8x - 12) + (9x + 4)= x-8

(-3p^3 + 5p^2 - 2p) + (3r^2 - 3r)= -3p^3+5p^2-2p+3r^2-3r

( -3p^3 + 5p^2 - 2p) + (-p^3 - 8p^2 -15p)= -4p^3-3p^2-17p

. ( 9r^2+4r-7) + (3r^2-3r)= 12r^2+r-7

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