sederhanakan (1+3 akar2) + (5 - akar 60)

(1 + 3√2)(5 - √60) =
= 5 - √60 + 15√2 - 3√120
= 5 - 2√15 + 15√2 - 6√30

Semoga membantu...
dari: th

(1+3√2)+(5-√60)=1+5+3√2-√60
=>6+3√2-√4x15
=>6+3√2-2√15
begitu?