Question

qual e a raiz quadrada de 400

Answer 1

Oi,

Resolução

√400 = 20

400 | 2
200 | 2
100 | 2
50 | 2
25 | 5
5 | 5
1

2 × 2 × 5 = 20

Espero ter ajudado e bons estudos!

Answer 2

$\begin{array}{c|c}\sf400&\sf2\\\sf200&\sf2\\\sf100&\sf2\\\sf50&\sf2\\\sf25&\sf5\\\sf5&\sf5\\\sf1\end{array}$

$\sf\sqrt{400}=\sqrt{2^2\cdot2^2\cdot5^2}$

$\sf\sqrt{400}=2\cdot2\cdot5$

$\boxed{\boxed{\sf \sqrt{400}=20}}$