Question

Folosid algoritmul de extragere a radacinii patrate radical din 1225 este...?

Answer 1

$1225:5=245 \\ \\245:5=49 \\ \\ 49={7}^{2} \\ \\ 1225={5}^{2} \times {7}^{2}={(5 \times 7)}^{2} \\ \\ \sqrt{1225} = \sqrt{(5 \times 7)}^{2}=5 \times 7= 35$