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a fost răspuns

16+8√5-4-4√5
----------------------------- (supra)
56+24√5-24-8√5+16

Răspuns :

[tex] \frac{16+8 \sqrt{5} -4-4 \sqrt{5}}{56+24 \sqrt{5} -24-8 \sqrt{5} +16}= \frac{12+4 \sqrt{5} }{48+16 \sqrt{5}}= \frac{12+4 \sqrt{5}}{4(12+4 \sqrt{5} )}= \frac{1}{4} [/tex]

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