Simplify by combining like terms. Write the final answer with descending powers.x - x2 + 5 + 7 - 6x2 + x3
A. x3 + 7x2 + x + 12
B. x3 - 7x2 + x + 12
C. x3 - 5x2 + x - 12
D. x3 - 7x2 + 12x
Answer: B
Mathematics
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A. 
B. 3
C. 
D. 
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Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 
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Find decimal notation.70%
A. 0.59 B. 0.7 C. 7 D. 0.07
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Find the square root.
A. 180 B. 90 C. 8100 D. 45
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