Simplify the expression. Assume that all variables represent nonnegative real numbers.10
- 
+ x
A. 
(5x2 - 2x + 4y)
B. 
(-5x2 + 2x + 4y)
C. 
(-2x2 + 5x + 10y)
D. 
(2x2 - 5x + 10y)
Answer: C
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What will be an ideal response?
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