2x³=-54

Real solution:

• 2x^3 = -54
• Divide by 2: x^3 = -27
• Take cube root: x = -3

If you want all complex roots (solving x^3 = -27):

• Factor: x^3 + 27 = 0 ⇒ (x + 3)(x^2 - 3x + 9) = 0
• Real root: x = -3
• Complex roots: x = (3 ± 3√3 i)/2

Most typical exam problems expect the real solution x = -3.