Tolong cariin jawabam plus caranya dong

jawaban : 6+3√7
cara : 9per2-√7 dikali 2+√7per2+√7
= 9(2+√7)per2²-(√7)²
= 9(2+√7)per3
= 3(2+√7)
= 6+3√7

Sekian; D

Jawabannya:
9/2-√7×2+√7 / 2+√2
=9(2+√7)/2²-(√7)²
=9(2+√7)/3
=3(2+√7)
=6+7√3. ----- ( C )

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