Explicație pas cu pas:
[tex]{5}^{14} \times {7}^{8} \times {13}^{24} = {5}^{7 \times 2} \times {7}^{4 \times 2} \times {13}^{12 \times 2} = {( {5}^{7} )}^{2} \times {( {7}^{4} )}^{2} \times {( {13}^{12} )}^{2} = \bf {({5}^{7} \times {7}^{4} \times {13}^{12} )}^{2} [/tex]
q.e.d.
