Simplify by first removing the parentheses and then combining the like terms.
A. 112x2 + 28y2
B. -112x2 + 28y2
C. 28x2 - 112y2
D. -28x2 + 112y2
E. -112x + 28y
Answer: B
Mathematics
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- 
A. - 
B. - 
C. 
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