Answer: x = 3.05
Step-by-step explanation:
The picture shows the graphic solution using technology.
Verifying the approximate solution found on the graph.
x = 3.05
0.5x³ - 4 = 3x + 1
0.5(3.05)³ - 4 = 3(3.05) + 1
0.5*28.373 - 4 = 9.2 + 1
14.2 - 4 = 10.2
10.2 = 10.2 (ok)
