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Matematika IX SMP
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Pembahasan :
(√2)/(2 - √6) . (2 + √6)/(2 + √6)
= (2√2 + √12)/(4 - 6)
= (2√2 + 2√3)/(-2)
= -√2 - √3
= -(√2 + √3)

(akar 2)/(2-akar 6)
= (akar 2)/(2-akar 6) × (2+akar 6)/(2+akar 6)
= (2 akar 2 + akar 12)/(4 - 6)
= (2 akar 2 + 2 akar 3)/(-2)
= 2(akar 2 + akar 3)/(-2)
= -(akar 2 + akar 3)
= - akar 2 - akar 3