Addition of Polynomial Functions
If f(x) = x3 - x2 + 2x + 4 and g(x) = 5x + 7, which of the following represents f(x) + g(x)?
A
x3 - x2 + x + 18
B
x3 - x2 + 7x + 11
C
x2 + 7x + 11
D
x3 - x2
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