Answer:
x = ± 
Step-by-step explanation:
Given
y = x² + 11 ( subtract 11 from both sides )
y - 11 = x² ( take the square root of both sides )
±
=
, hence
x = ± 
Answer:
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Answer:
3
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
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