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ki77a [65]
4 years ago
5

Use FOIL!!!!!! plz help!!!

Mathematics
2 answers:
saul85 [17]4 years ago
3 0
The last one is the answer.
makkiz [27]4 years ago
3 0
(b+3)(b-9)

F: b^2
O: -9b
I: +3b
L: -27

so
b^2 -9b +3b -27
=b^2 -6b  -27

answer b^2 -6b  -27 (last choice)
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