Find the rationalizing factor of √2 +√7 - √10
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√2 + √7 - √10)(√2 + √7 + √10) = (√2 + √7)^2 - 10 = 2√14 - 1. = 55. = 15√2 + 5√7 + √10 + 4√35 is one such rationalizing factor.
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