What is the first step in the solution of 3x2+6x=12 by completing the square?
2 answers:
Divide all terms by a i.e 3
We get
Or
Option B is correct
Answer:
B: r² + 2r = 4
Explanation:

<u>divide both sides by 3</u>
← This is the result of the first step.
<u>factor out the common term</u>

<u>set to 0</u>

<u>simplify</u>

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