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OpenStudy (keana):
What is the difference of 7/x-9 minus 3x-27/(x-9)^2? a: 4x+90/x^2-18+81; x ≠ 9 b: 4/x-9; x≠9 c: 4x+9/x^2-18+81; x≠-9 d: 4/x-9;x≠-9
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