Find the Interval in Which the Equation Has at Least $$x ^ { 4 } - 8 x ^ { 2 } + 15 = 0$$

question 4

Multiple Choice

Find the interval in which the equation has at least one real root. $$x ^ { 4 } - 8 x ^ { 2 } + 15 = 0$$

• A) \(\quad - 1\) and 0
• B) \(- 4\) and \(- 3\)
• C) 3 and 4
• D) 2 and 3
• E) \(\quad 0\) and 1

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Definitions:

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