Question

simplifique os radicais
​

Answer 1

Resposta:

a)

$\sqrt{8} = \sqrt[]{ {2}^{3} } = \sqrt{ {2}^{2} \times 2 } = 2 \sqrt{2}$

ou

$\sqrt{8} = \sqrt{4 \times 2} = \sqrt{4} \times \sqrt{2} = 2 \times \sqrt{2} = 2 \sqrt{2}$

b)

$\sqrt{12} = \sqrt{4 \times 3} = \sqrt{ {2}^{2} \times 3} = 2 \sqrt{3}$

ou

$\sqrt{12} = \sqrt{4 \times 3} = \sqrt{4} \times \sqrt{3} = 2 \times \sqrt{3} = 2 \sqrt{3}$

c)

$\sqrt{20} = \sqrt{4 \times 5} = \sqrt{4} \times \sqrt{5} = 2 \times \sqrt{5} = 2 \sqrt{5}$

d)

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

Bons Estudos!