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rationalize the denominator: 6/3+√x
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multiply denominator and numerator by 3-sqrt(x) and simplify to get ur ans
6 6(3-sqrt(x)) 18 - 6sqrt(x) 6(3-sqrt(x)) --------- = ------------------ = -------------- = ----------- 3+sqrt(x) (3+sqrt(x))(3-sqrt(x)) 3-x 3-x
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