VMO 1995 Problem 1

Find all real solutions to $x^3$ - $3x^2$ - 8x + 40 = 8(4x + 4) $^{1/4}$ = 0.

Community text Kalva (prase.cz mirror). Quoted with source.

Solutions

No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.