4 per 4 dikurangi √14

[tex] \frac{4}{4- \sqrt{14} } X \frac{4+ \sqrt{14} }{4+ \sqrt{14} } \\ \\ = \frac{4(4+ \sqrt{14}) }{( 4^{2})-( \sqrt{14}) ^{2} } \\ \\ = \frac{4(4+ \sqrt{14}) }{16-14 } \\ \\ = \frac{4(4+ \sqrt{14}) }{2 } \\ \\ =2(4+ \sqrt{14}) \\ =8 + 2 \sqrt{14} [/tex]