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Write the trinomial as a square of a binomial or as an expression opposite to a square of a binomial. -42a +9a²+49
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27 votes
27 votes
Write the trinomial as a square of a binomial or as an expression opposite to a square

of a binomial.
-42a +9a²+49

User Jon Mitchell
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2 Answers

6 votes
6 votes

Answer:

(3a-7)^2 is the answer

User Lance Shi
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26 votes
26 votes
(3a-7)^2

1. 9a^2-21a-21a+49
2. 3a(3a-7)-7(3a-7)
3. (3a-7)(3a-7)
4. Combine like terms
User LFLFM
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