Use a Graphing Calculator to Approximate the Real Zeros $$f ( x ) = x ^ { 3 } + x ^ { 2 } - 5 x - 5$$

Multiple Choice

Use a graphing calculator to approximate the real zeros. Give each zero as a decimal to the nearest tenth.
- $$f ( x ) = x ^ { 3 } + x ^ { 2 } - 5 x - 5$$

A) $1,2.2 \mathrm { i } , - 2.2 \mathrm { i }$
B) $- 1,2.2 , - 2.2$
C) $1,2.5 , - 2.5$
D) $1,2.2 , - 2.2$