When you add or subract something like this, you want to look for terms with the same power of x
3x^3 + (3x^2 - 2x^2) + (-6x - 5x ) + 3
3x^3 + x^2 - 11x + 3
The closest answer would be (A) if the second term was supposed to be x^2 or (C) if the third term was to be -11x
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