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3x^2-12x-21=0 solve by completing the square

3x^2-12x-21=0 solve by completing the square
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2 votes
3x^2-12x-21=0 solve by completing the square

User AlexMax
by
7.6k points

1 Answer

5 votes

Answer:

x = 2 ± √11 (I believe)

Explanation:

User KonstantinosKokos
by
8.1k points
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