Find the sum, regrouping when necessary.

A. 123
B. 113
C. 124
D. 122


Answer: A

Mathematics

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A.

B.

C.

D.

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A. 3 B. ±6 C. -29 D. ±3

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A. -3 squared should be 9, not -9. B. The expression within the parentheses should have been evaluated first. C. There is an addition error. D. The exponent should be distributed through the numbers in the parentheses.

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