yg bisa jawab tolong bantu ya 1.2√3+√108-2√27-√72+√98

2√3 + √108 - 2√27 - √72 + √98
=2√3 + √36×3 - 2√9×3 - √36×2 + √49×2
=2√3 + 6√3 - 2×3√3 - 6√2 + 7√2
=2√3 + 6√3 - 6√3 - 6√2 + 7√2
=2√3-√2