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Neko [114]
2 years ago
10

Solve x^2+12x=-11by completing the square which is the solution set of the equation A={-11,-1} B={-11,1} C={11,-1} D={11,1}

Mathematics
2 answers:
harkovskaia [24]2 years ago
8 0

Answer:

-11 and -1

Step-by-step explanation:

x² + 12x = -11

x² + 12x + 36 = -11 + 36

(x+6)² = 25

x + 6 = √25

x + 6 = 5

x = 5 - 6

x = -1

x+6 = -5

x = -11

Musya8 [376]2 years ago
4 0

Answer:B

Step-by-step explanation:

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