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5 votes
(3a - 7)(-a^2 + 3a + 7)

1 Answer

2 votes

Answer:

-3a³+16a²-49

Explanation:

(3a-7)(-a²+3a+7)

-3a³+9a²+21a+7a²-21a-49

-3a³+16a²-49

User Ramashish Tomar
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