Question

Va rog.. imi poate explica cineva acest ex.. de unde vine 6 .. ce a inmultit sau ce a facut . Sunt paralela cu matematica. aveti link-ul aici https://tex.z-dn.net/?f=%28+2%5Csqrt%7B3%7D-3+%29%28+%5Csqrt%7B3%7D+%2B1%29%3D6%2B2+%5Csqrt%7B3%7D-3+%5Csqrt%7B3%7D+++-3%3D+%5C%5C+%3D3-+%5Csqrt%7B3%7D+

Answer 1

   
[tex]\displaystyle\\ \texttt{Exercitiul rezolvat pe care l-ai atasat, este:}\\\\ (2\sqrt{3}-3)(\sqrt{3}+1)=6+2\sqrt{3} -3\sqrt{3}-3 = 3-\sqrt{3}\\\\ \text{Explicatii:}\\\\ \text{S-a folosit formula:}\\\\ (a-b)(c+d) = ac+ad-bc-bd\\ \texttt{Observi ca la inmultirea a 2 paranteze, se inmulteste } \\ \texttt{fiecare termen dintr-o paranteza cu fiecare termen din }\\ \texttt{cealalalta paranteza}[/tex]


[tex]\displaystyle\\ \texttt{Din exercitiul dat avem:}\\\\ Termenul~1:~~~2\sqrt{3} \times \sqrt{3} = 2\times (\sqrt{3} \times \sqrt{3})=2\times 3 = 6\\\\ Termenul~2:~~~2\sqrt{3} \times 1=2\sqrt{3} \\\\ Termenul~3:~~~ (-3)\times \sqrt{3} = -3\sqrt{3}\\\\ Termenul~4:~~~ (-3) \times 1 = -3\\\\ \texttt{La termenul 1, } ~\sqrt{3} \times \sqrt{3}= 3~\text{ conform formulei:} ~ \sqrt{a} \times \sqrt{a} =a [/tex]