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3√24 + 2√3(√32 -2√18)
3√4(6) + 2√3(32) - 4√3(18)
3(2)√6 + 2√3(16)(2) - 4√3(9)(2)
6√6 + 2(4)√3(2) - 4(3)√3(2)
6√6 + 8√6 - 12√6
(6 + 8 - 12)√6
2√6
No. 21
² log 5 = p
²⁰ log 125 = ²⁰ log 5³
= 3 ²⁰ log 5
= 3/ ⁵ log 20
= 3/ ⁵ log 5 x 4
= 3/( ⁵ log 5 + ⁵ log 2²)
= 3/ (1 + 2.⁵ log 2)
= 3/ (1 + 2/p)
= 3/(p/p + 2/p)
= 3/((p + 2)/p)
= 3p/(p + 2)
yang lain usaha sendiri ya