Use a Graphing Calculator to Approximate the Real Zeros $$f ( x ) = x ^ { 4 } - 7 x ^ { 2 } + 12$$

question 382

Multiple Choice

Use a graphing calculator to approximate the real zeros. Give each zero as a decimal to the nearest tenth.
- $$f ( x ) = x ^ { 4 } - 7 x ^ { 2 } + 12$$

• A) \(1.7 , - 1.7,2 , - 2\)
• B) \(1.7,2\)
• C) \(3 , - 3,4 , - 4\)
• D) \(- 1,2.3,2.3 , - 2.3\)

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