Question

Va rog, repede!!!!!!!!!!!! ​

Answer 1

Răspuns:

a=(3$\sqrt{3}$+2$\sqrt{2}$$\sqrt{35-\sqrt{864} }$

[($5\sqrt{2}) ^{2}$-49)=

=$(3\sqrt{3}+2\sqrt{2} )$($\sqrt{} \frac{35+\sqrt{1225-861} }{2} - \sqrt{} \frac{35-\sqrt{1225-861} }{2}$) + 50-49=

=$(3\sqrt{3}+2\sqrt{2} )[tex](\sqrt{\frac{35+\sqrt{361} }{2} } - \sqrt{\frac{35-\sqrt{361} }{2} } )$+1=

=$(3\sqrt{3}+2\sqrt{2} )([tex]\sqrt{} \frac{35+19}{2} - \sqrt{} \frac{35-19}{2}$)+1=

=$(3\sqrt{3}+2\sqrt{2} )([tex]\sqrt{27} -\sqrt{8}$)+1=

=[tex](3\sqrt{3}+2\sqrt{2} )[tex](3\sqrt{3}-2\sqrt{2} )+1=(27-8)+1=20

Explicație pas cu pas: