hasil dari 2√18-√32+4√8 adalah... pakai cara ya kak,thx

2√18 - √32 + 4√8
= 3√9√2 - √16√2 + 4√4√2
= 3.3√2 - 4√2 + 4.2√2
= 9√2 - 4√2 + 8√2
= 13 √2

Semoga Membantu :)

2√18 - √32 + 4√8 = 2√(9x2) -√(16x2) +4√(4x2)
                             = 2x3√2 - 4√2 + 4x 2√2
                             = 6√2 - 4√2 + 8√2
                             = 10√2