hasil akar kuadrat 18 + akar kuadrat 2 adalah

[tex] = \sqrt{18} + \sqrt{2} \\ = \sqrt{9 \times 2} + \sqrt{2} \\ = 3 \sqrt{2} + \sqrt{2 } \\ = (3 + 1) \sqrt{2} \\ = 4 \sqrt{2} [/tex]


Semoga membantu...

[tex] = \sqrt{18} + \sqrt{2} [/tex]

[tex] = \sqrt{( {3}^{2} \times 2) } + \sqrt{2} [/tex]

[tex] = \sqrt{ {3}^{2} } \sqrt{2} + \sqrt{2} [/tex]
( coret akar dua dengan pangkat dua )

[tex] = 3 \sqrt{2} + \sqrt{2} [/tex]

[tex] = ( 3 + 1 ) \sqrt{2} [/tex]

[tex] = 4 \sqrt{2} [/tex]