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Answer:
x = ± 2
Step-by-step explanation:
Given
12 - x² = 0 ( add x² to both sides )
12 = x² or
x² = 12 ( take the square root of both sides )
x = ±
= ±
= ± 2
Answer:
2. el numero contante por que se suma o resta
Answer:
230
Step-by-step explanation: