Perform the indicated operation.(14x + 12) - (-4x2 - 7x + 12)

A. 4x2 - 21x
B. 4x2 + 21x
C. 4x2 + 21x - 24
D. -4x2 + 7x + 24

Answer: B

Mathematics

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Round to the indicated place value.Round to the nearest ten thousandth: 17.78678

A. 17.7867 B. 17.79 C. 17.7868 D. 17.787

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Tell which set or sets the number belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.0

A. whole, real B. integers, real C. rational, real D. whole, integers, rational, real

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Perform the indicated operations and simplify the result. Leave the answer in factored form. - 

A. - 
B.
C. - 
D.

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