Simplify. Assume that each variable is nonnegative.(3
+ 8 )(
- 9)
A. 3x - 19
- 72
B. 3x - 19
+ 72
C. 3x + 35
- 72
D. 3x + 19
- 72
Answer: A
Mathematics
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12 hydroxide ions
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as zeros. Find the other zeros.
A. -3i, 
B. 3 - i , -3 + 
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