Question

qual o valor do x? a)³√x=5 b)⁴√x=3 c)³√x=2​

Answer 1

$a) \sqrt[3]{x} = 5 \\ \sqrt[3]{x} {}^{3} = 5 {}^{3} \\ x = 125$

$b)\sqrt[4]{x} = 3 \\ x = 81\\ \sqrt[4]{81} = 3 \\ 3 = 3 \\ x = 81$

$c) \sqrt[3]{x} = 2 \\ \sqrt[ 3 ]{3} {}^{3} = 2 {}^{3} \\ x = 8$