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Mathematics 21 Online
OpenStudy (anonymous):

8. Simplify: x + 7/x^2 + 4x - 21 A. 1/x - 3; where x doesn't equal 3, 7 B. x - 3: where x doesn't equal 3 C. 1/x - 7; where x doesn't equal 7 D. x - 7

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