Find All Rational Roots of the Equation $28 x ^ { 4 } + 164 x ^ { 3 } - 213 x ^ { 2 } + 76 x - 7 = 0$

question 9

Multiple Choice

Find all rational roots of the equation. $28 x ^ { 4 } + 164 x ^ { 3 } - 213 x ^ { 2 } + 76 x - 7 = 0$

• A) \(\quad x = \frac { 1 } { 4 } , x = \frac { 1 } { 2 } , x = - 7 , x = \frac { 1 } { 9 }\)
• B) \(\quad x = \frac { 1 } { 4 } , x = \frac { 1 } { 4 } , x = 7 , x = \frac { 1 } { 7 }\)
• C) \(x = \frac { 1 } { 2 } , x = \frac { 1 } { 2 } , x = - 7 , x = \frac { 1 } { 7 }\)
• D) \(\quad x = \frac { 1 } { 2 } , x = \frac { 1 } { 2 } , x = 9 , x = \frac { 1 } { 7 }\)

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