Solve the equation by extracting the square roots.
2 = 81
A. x = -14 or x = 4
B. x = 
or x = 
C. x = - 
or x = 
D. x = - 
or x = 
Answer: C
Mathematics
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+ 
+ 
+ ... + 
A. 
B. 
C. 
D. 
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A. 
B. ?
C. 
?
D. 
?
E. 
?
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