Răspuns:
[tex]x = 4 \sqrt{2} + 8 \sqrt{5} - 3 \sqrt{7} [/tex]
[tex]y = 6 \sqrt{2} - 4 \sqrt{5} + 9 \sqrt{7} [/tex]
[tex]m.a. = \frac{4 \sqrt{2} + 8 \sqrt{5} - 3 \sqrt{7} + 6 \sqrt{2} - 4 \sqrt{5} + 9 \sqrt{7} }{2} = \frac{10 \sqrt{2} + 4 \sqrt{5} + 6 \sqrt{7} }{2} = 5 \sqrt{2} + 2 \sqrt{5} + 3 \sqrt{7} [/tex]
Răspuns:
[tex]\bf x = 2 \sqrt{8} + 2 \sqrt{80} - \sqrt{63}[/tex]
[tex]\bf x = 2 \sqrt{ {2}^{3} } + 2 \sqrt{ {2}^{4} \cdot5} - \sqrt{ {3}^{2} \cdot7}[/tex]
[tex]\bf x = 2 \cdot2 \sqrt{2} + 2 \cdot 2^{2} \sqrt{5} - 3\sqrt{7}[/tex]
[tex] \green{\bf x = 4 \sqrt{2} + 8 \sqrt{5} - 3 \sqrt{7}}[/tex]
[tex]\bf y = \sqrt{72} - 2 \sqrt{20} + 3 \sqrt{63}[/tex]
[tex]\bf y = \sqrt{ 2^{3} \cdot 3^{2} } - 2 \sqrt{2^{2} \cdot 5} + 3 \sqrt{3^{2} \cdot 7}[/tex]
[tex]\bf y = 2 \cdot 3\sqrt{2} - 2 \cdot2 \sqrt{5} + 3 \cdot 3\sqrt{ 7}[/tex]
[tex] \purple{\bf y = 6 \sqrt{2} - 4 \sqrt{5} + 9 \sqrt{7}}[/tex]
[tex]\bf M_{a}= \dfrac{4 \sqrt{2} + 8 \sqrt{5} - 3 \sqrt{7} + 6 \sqrt{2} - 4 \sqrt{5} + 9 \sqrt{7} }{2}[/tex]
[tex]\bf M_{a} = \dfrac{10 \sqrt{2} + 4 \sqrt{5} + 6 \sqrt{7} }{2} = \dfrac{2 \cdot(5\sqrt{2} + 2 \sqrt{5} + 3 \sqrt{7})}{2}= [/tex]
[tex]\bf M_{a} = \dfrac{ \not2 \cdot(5\sqrt{2} + 2 \sqrt{5} + 3 \sqrt{7})}{ \not2}[/tex]
[tex] \red{ \boxed{ \: \bf M_{a}= 5 \sqrt{2} + 2 \sqrt{5} + 3 \sqrt{7} \: }}[/tex]
[tex] = = pav38 = = [/tex]
