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25-04-2017
Mathematics

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(5a-3) (4a+3)

A. 24
B. 22
C. 27
D. 20

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Аноним Аноним

25-04-2017

(5a-3)(4a+3)
= 5a(4a+3)-3(4a+3)
= 20a^2 + 15a - 12a - 9
= 20a^2 + 3a - 9
Is there more to this question?

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