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= 24 / 3-√7 x (3+√7)/(3+√7)
= 24(3+√7) / (3-√7)(3+√7) ---> ingat (a+b)(a-b) = a²-b²
= 24(3+√7) / (3² - (√7²))
= 24(3+√7) / (9-7)
= 24(3+√7) / 2
= 12(3+√7)
= 36 + 12√7
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