Write the equation in standard form.18x2 + 45y2 + 108x - 270y + 198 = 0
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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