Use ZERO (Or ROOT) to Approximate the Positive X-Intercepts of the Equation

Multiple Choice

Use ZERO (or ROOT) to approximate the positive x-intercepts of the equation. Round to two decimal places.
- $$y = x ^ { 4 } + 1.5 x ^ { 3 } - 8.31 x ^ { 2 } - 3.27 x + 8.39$$

A) $0.87$ and $2.21$
B) $8.39$
C) $0.94$ and $2.18$
D) $1.19$ and $3.44$