Question

Efectuați: (7¹⁴×5)²÷7²​

Answer 1

Răspuns:

$( {7}^{14} \times 5)^{2} = {7}^{28} \times {5}^{2}$

${7}^{28} \times {5}^{2} \div {7}^{2} = {7}^{28 - 2} \times {5}^{2} = {7}^{26} \times {5}^{2} = ( {7}^{13} \times 5)^{2}$