Ответ: 2
5√7 - √17 * 5√7 + √17 =
= 5√(√7 - √17) * (√7 + √17) =
= 5√49 - 17 =
= 5√32 = 2
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Ответ: 2
5√7 - √17 * 5√7 + √17 =
= 5√(√7 - √17) * (√7 + √17) =
= 5√49 - 17 =
= 5√32 = 2