tolong sama caranya nya yaaaa makasiii

Jawaban : A

√32 + 3√18 - 2√50
= √16×2 + 3√9×2 - 2√25×2
= 4√2 + 3×3√2 - 2×5√2
= 4√2 + 9√2 - 10√2
= 3√2.