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Verified answer
Bab Bilangan IrrasionalMatematika SMP Kelas IX
(2 - √3) / (2 + √3) = (2 - √3) (2 - √3) / (2² - √3²)
= (4 - 2√3 - 2√3 + √3²) / (4 - 3)
= (4 - 4√3 + 3)/1
= 7 - 4√3
Verified answer
(2 - V3)/(2 + V3)= [(2 - V3)/(2 + V3)] × [(2 - V3)/(2 - V3)]
= (4 - 4V3 + 3)/(4 - 3)
= (7 - 4V3)/(1)
= 7 - 4V3