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xz_007 [3.2K]
4 years ago
6

PLEASE HELP ME. I’ve been stuck on this this for 2 weeks

Mathematics
2 answers:
murzikaleks [220]4 years ago
3 0

Answer:

D

Step-by-step explanation:


Lilit [14]4 years ago
3 0

Answer:

20b^4 + 23b^3 + 21b^2 Answer D

Step-by-step explanation:

4b^2 X 5b^2 = 20b^4

4b^2 X -3b = -12b^3

7b X 5b^2 = 35b^3

7b X -3b = -21b^2



35b^3 + (-12b^3) = 23b^3


20b^4 + 23b^3 -21b^2

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