Question

1. (solve) 3x³ = 81

Explanation:

Step1: Isolate $x^3$ term

Divide both sides by 3:
$\frac{3x^3}{3} = \frac{81}{3}$
Simplify to get:
$x^3 = 27$

Step2: Solve for $x$

Take cube root of both sides:
$x = \sqrt[3]{27}$
Simplify the cube root:
$x = 3$

Answer:

$x=3$