Răspuns:
2•3³=2•27=54
[tex] \sqrt{ {3}^{13} } = {3}^{6} \sqrt{3 } = 729 \sqrt{3} [/tex]
3¹²=531.441
[tex] {3}^{3} \sqrt{3} [/tex]
[tex] \times = \sqrt{ {3}^{6} + {3}^{7} } = \sqrt{(3 + 1) \times {3}^{6} } = \sqrt{4} \times {3}^{6} = 2 \times {3}^{3} = 2 \times 27 = 54[/tex]
Numarul egal x este egal cu varianta a
