Final answer:
The expression is equivalent to x²+3x+2.
Step-by-step explanation:
To determine which expression is equivalent to (x²+2x³+3x+2) = (x³ - 1), we need to simplify the left side of the equation.
Combining like terms, we can rewrite the left side as: x² + 3x + 2.
Therefore, the correct answer is Option B: x²+3x+2.
Learn more about Expression simplification