Question

como calcular raiz quadrada de 256?

Answer 1

256 | 2 
128 | 2
64   | 2
32   | 2
16   | 2
8     | 2
4     | 2
2     | 2
1     | = 2⁸

√256 = √2⁸  = 2⁴ = 16.

Answer 2

$\begin{array}{c|c}\sf256&\sf2\\\sf128&\sf2\\\sf64&\sf2\\\sf32&\sf2\\\sf16&\sf2\\\sf8&\sf2\\\sf4&\sf2\\\sf2&\sf2\\\sf1\end{array}$

$\sf\sqrt{256}=\sqrt{2^2\cdot2^2\cdot2^2\cdot2^2}$

$\sf\sqrt{256}=2\cdot2\cdot2\cdot2$

$\boxed{\boxed{\sf \sqrt{256}=16}}$