sederhanakan akar 15+akar6√6

[tex] \sqrt{15+6 \sqrt{6}}= \sqrt{15+2.3 \sqrt{6}}= \sqrt{15+2 \sqrt{6.9}}= \sqrt{15+2 \sqrt{54}} \\ a+b=15$ dan $ab=54 \\ $Didapat : $a=9$ dan $b=6 \\ \sqrt{15+6 \sqrt{6}}=\sqrt{9}+\sqrt{6}=3+\sqrt{6}[/tex]

akar ( 15 + 6√6 )
akar ( 15 + 2.3 √6
akar ( 15 + 2√54 )
15 = 9 + 6
54 = 9 . 6

jadi
akar (15 + 2√54 )
= √9 + √6