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a=(3³×81²×3×3³):3¹⁵ ​

Răspuns :

[tex]a = ( {3 }^{3} \times {81}^{2} \times 3 \times {3}^{3} ) \div {3}^{15} [/tex]

[tex]a = [{3 }^{3} \times ( { {3}^{4} })^{2} \times 3 \times {3}^{3} ]\div {3}^{15} [/tex]

[tex]a = ({3 }^{3} \times { 3 }^{4 \times 2} \times 3 \times {3}^{3} )\div {3}^{15}[/tex]

[tex]a = ({3 }^{3} \times { 3 }^{8} \times 3 \times {3}^{3} )\div {3}^{15}[/tex]

[tex]a = ({3 }^{3 + 8 + 1 + 3} )\div {3}^{15}[/tex]

[tex]a = {3}^{15} \div {3}^{15} [/tex]

[tex]a = {3}^{15 - 15}[/tex]

[tex]a = {3}^{0} = 1[/tex]