Question

A)
$\sqrt{2} + 2 \sqrt{2}$
B)
$5 \sqrt{3 + 9 \sqrt{3} }$
C)
$2 \sqrt[3]{4} - \sqrt[3]{4}$
D)
$\sqrt{2} \times \sqrt{2}$
E)
$\sqrt{2} \times \sqrt{2} \times \sqrt{2 \times } \sqrt{2}$

Answer 1

Vamos lá

Resolução:

I )

√ 2 + 2√ 2

= ( 1 + 2 ) √ 2

= 3√2

II )

5√3 + 9√ 3

= ( 5 + 9 )√ 3

= 14√ 3

III )

2 ³√4 - ³√4

= ( 2 - 1 ) ³√4

= ³√ 4

4 )

√ 2 • √ 2 =

= 1 + 1

= 2

5 )

√ 2 • √ 2 • √ 2 • √ 2

= 1 + 1 + 1 + 1

= 2 + 2

= 4