Răspuns :
[tex]\sqrt{2^6\cdot(7^2-2^4\cdot 3)} =\\ \\ =\sqrt{2^6\cdot (49-16\cdot 3)} =\\ \\ =\sqrt{2^6\cdot(49-48)} = \\ \\ =\sqrt{(2^3)^2\cdot 1} =\\ \\ = 2^3 =\\ \\ =8[/tex]
[tex]\sqrt{2^6\cdot(7^2-2^4\cdot 3)} =\\ \\ =\sqrt{2^6\cdot (49-16\cdot 3)} =\\ \\ =\sqrt{2^6\cdot(49-48)} = \\ \\ =\sqrt{(2^3)^2\cdot 1} =\\ \\ = 2^3 =\\ \\ =8[/tex]