ANSWER:
STEP BY STEP EXPLANATION:
[tex]x( {x}^{2} + 18) = 0[/tex]
[tex]x = 0[/tex]
OR
[tex] {x}^{2} + 18 = 0[/tex]
[tex] {x}^{2} = - 18[/tex]
[tex]x = - \frac{1}{18} [/tex]
