Question

Cât face 2 supra 5 ori radical din 50

Answer 1

$\frac{2}{5} \times \sqrt{50} = \frac{2}{5} \times \sqrt{5 {}^{2} \times 2 } = \frac{2}{5} \times \sqrt{5 {}^{2} } \sqrt{2} = \frac{2}{5} \times 5 \sqrt{2} = 2 \sqrt{2}$

Answer 2

$\frac{2}{5} \times \sqrt{50} = \frac{2}{5} + \times \sqrt{25 \times 2} = \frac{2}{5} \times 5 \sqrt{2} = \frac{2 \times 5 \sqrt{2} }{5} = 2 \sqrt{2}$