alan1025 alan1025

10-12-2018
Mathematics

contestada

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

PLEASE HELP ME Ive been stuck on this this for 2 weeks class=

Respuesta :

cececole21 cececole21

10-12-2018

Answer:

D

Step-by-step explanation:

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Аноним Аноним

10-12-2018

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

Answer Link

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