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Factorize the following:9a²-42a+49​

User Zept
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2 Answers

3 votes

Answer:

(3a-7)²

Explanation:

Sum=-42

Prodect=441

9a²-21a-21a+49

3a(3a-7)-7(3a-7)

(3a-7)(3a-7)

=(3a-7)²

3 votes
(3a-7) ^2 i believe
User SubGothius
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