Akar 50-6 akar8 +4akar18-5akar32 Tolong please...

√50 – 6√8 + 4√18 –5√32
= √(25×2) – 6√(4×2) + 4√(9×2) – 5√16×2
= 5√2 – 6×2√2 + 4×3√2 – 5×4√2
= 5√2 – 12√2 + 12√2 – 20√2
= –15√2

√50 - 6√8 + 4√18 - 5√32
= √(25*2 - 6√(4*2) + 4√(9*2) - 5√(16*2)
= 5√2 - 12√2 + 12√2 - 20√2
= -15√2