Solve by factoring.x2 + 108 = 21x
A. {9, 12}
B. {1, 108}
C. {-9, -12}
D. {-108, -1}
Answer: A
Mathematics
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(
+ 
)
A. 10
+ 10
B. 2
+ 5
C. 2
+ 5
D. 2
+ 10
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A. 
, ?
B. 0, ?
C. 0, 
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, 2?
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C. 
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