18 per 4 - [tex] \sqrt{10} [/tex] adalah.. Bab Rasionalkan akar

[tex] \frac{18}{4 - \sqrt{10} } \times \frac{4 + \sqrt{10} }{4 + \sqrt{10} } \\ = \frac{18(4 + \sqrt{10} )}{16 - 10} \\ = \frac{18(4 + \sqrt{10} )}{6} \\ = 3(4 + \sqrt{10}) \\ = 12 + 3 \sqrt{10} [/tex]
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