Question

Qual o valor do x?
³√x=7

³√x=-5

³√x=4

Answer 1

Oie, Td Bom?!

>>> Resolvendo as expressões.

I.

$\sqrt[3]{x} = 7$

$\sqrt[3]{x} {}^{3} = 7 {}^{3}$

$x = 343$

II.

$\sqrt[3]{x} = - 5$

$\sqrt[3]{x} {}^{3} = ( - 5) {}^{3}$

$x = - 5 {}^{3}$

$x = - 125$

III.

$\sqrt[3]{x} = 4$

$\sqrt[3]{x} {}^{3} = 4 {}^{3}$

$x = 64$

Att. Makaveli1996