[tex]64 = {8}^{2} [/tex]
[tex]100 = {10}^{2} [/tex]
[tex]140 = 2 \sqrt{35} \: nu \: este \: patrat \: a \: unui \: numar \: natura[/tex]
[tex]333 = 3 \sqrt{111} \: nu \: este \: patrat \: a \: unui \: numar \: natural[/tex]
[tex]1000000 = {1000}^{2} [/tex]
[tex] {2}^{4} = 2 \times 2 \times 2 \times 2 = 4 \times 4 = {4}^{2} [/tex]
[tex] {4}^{2} \times 9 = {4}^{2} \times {3}^{2} = {(4 \times 3)}^{2} = {12}^{2} [/tex]
[tex] {3}^{6} = 3 \times 3 \times 3 \times 3 \times 3 \times 3 = {3}^{3} \times {3}^{3} = 27 \times 27 = {27}^{2} [/tex]
[tex] {21}^{8} = {21}^{2} \times {21}^{2} \times \: {21}^{2} \times {21}^{2} = {(21 \times 21 \times 21 \times 21)}^{2} [/tex]
[tex] {10}^{9} = {10}^{3} \times {10}^{3} \times {10}^{3} = {(10 \times 10 \times 10)| }^{3} \: nu \: este \: patrat \: a \: unui \: numar \: natural[/tex]
