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( 3 - √8 ) / ( 2 - √2 )
⇔3 - 2√2 / 2 - √2
⇔rasionalkan.
(3 - 2√2)(2 + √2) / (2 - √2)(2 + √2)
⇔(3 - 2√2)(2 + √2) / 4-2
⇔(3 - 2√2)(2 + √2) / 2
⇔kalikan binomial
⇔6+3√2 - 4√2 - 4 / 2
⇔2+(3-4)√2 / 2 = 2-1√2 / 2 = 2 - √2 / 2 ← jawaban
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