Question

Efetue:
A) √18 – √8 – √2 =

B) 5√45 + 3√5 – 2√125 =

C) √50 – √8 =
———————
√2

D) 1√7 + 3 √7 =
— —
2 2

ME AJUDEM PRFVR!!

Answer 1

$\frac{\sqrt{(50-2\sqrt{2)x2} } }{2}$Resposta:

A) 0

B) $\sqrt[8]{5}$

C)$\sqrt{25-\sqrt{2} }$

D)

Explicação passo a passo:

A)

√18 – √8 – √2 =

$\sqrt[3]{2} -\sqrt{8} -\sqrt{2}$=

$\sqrt[3]{2} -\sqrt[2]{2} -\sqrt{2}$=

0

B)

5√45 + 3√5 – 2√125 =

$\sqrt[15]{5}+\sqrt[3]{5} -\sqrt[2]{125}$

$\sqrt[15]{5}+\sqrt[3]{5}-\sqrt[10]{5}$

$\sqrt[8]{5}$

C)

√50 – √8 / √2 =

$\frac{\sqrt{50 -\sqrt[2]{2} } }{\sqrt{2} }$

multiplique a fração por $\frac{\sqrt{2} }{\sqrt{2} }$

$\frac{\sqrt{50-\sqrt[2]{2 \sqrt{2} } } }{\sqrt{2} } x \frac{\sqrt{2} }{\sqrt{2} }$

$\frac{\sqrt{(50-2\sqrt{2)x2} } }{\sqrt{2\sqrt{2} } }$

$\frac{\sqrt{(50-2\sqrt{2)x2} } }{\s2\ } }$

$\frac{\sqrt{100-4\sqrt{2} } }{2}$

$\frac{2\sqrt{25-\sqrt{2} } }{2}$

$\sqrt{25-\sqrt{2} }$

D)

1√7 + 3 √7 =

— —

2 2 nao entendi oque vc quis dizer...