Question

1.What number raised to the third power will equal 216?

Answer 1

Let the number be x

#1

$\\ \sf\longmapsto x^3=216$

$\\ \sf\longmapsto x^3=6^3$

$\\ \sf\longmapsto x=6$

#2

$\\ \sf\longmapsto \sqrt[3]{27}=3$

#3

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

• i=√-1

#4

$\\ \sf\longmapsto -\sqrt[3]{125}=-5$

#5

$\\ \sf\longmapsto -\sqrt[3]{-343}=-7i$

#6

$\\ \sf\longmapsto \sqrt[3]{\dfrac{27}{1000}}=\dfrac{3}{10}$