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

question 370

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) \(1,2.2 , - 2.2\)

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