6a(2a2 + 4a + 2) - 3a(2a2 - 7a + 8) =

a. 6a3 + 45a2 - 12a
b. 12a3 + 3a2 - 36a
c. 18a3 + 45a2 - 36a
d. 18a2 + 3a2 + 12a
e. 6a3 + 3a2 - 12a


a. 6a3 + 45a2 - 12a

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