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Use a Graphing Calculator to Approximate the Real Zeros f(x)=x4−7x2+12f ( 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) =x4−7x2+12f ( x ) = x ^ { 4 } - 7 x ^ { 2 } + 12


A) 1.7,−1.7,2,−21.7 , - 1.7,2 , - 2
B) 1.7,21.7,2
C) 3,−3,4,−43 , - 3,4 , - 4
D) −1,2.3,2.3,−2.3- 1,2.3,2.3 , - 2.3

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