Find All Real Solutions of the Polynomial Equation $x ^ { 4 } - 8 x ^ { 3 } + 56 x - 49 = 0$

question 45

Multiple Choice

Find all real solutions of the polynomial equation $x ^ { 4 } - 8 x ^ { 3 } + 56 x - 49 = 0$ .

• A) \(x = 1,7 , \pm \sqrt { 7 }\)
• B) \(x = 1,49\)
• C) \(x = 1 , - 8 , - 7\)
• D) \(x = 1 , - 49,14\)
• E) \(x = 1 , \pm \sqrt { 7 }\)

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