Find All Valid Real Roots for the Equation $$3 x ^ { 8 } + 4 x ^ { 4 } = 32$$

question 19

Multiple Choice

Find all valid real roots for the equation.
- $$3 x ^ { 8 } + 4 x ^ { 4 } = 32$$

• A) no real roots
• B) \(x = \sqrt [ 4 ] { 4 }\)
• C) \(x = \pm \frac { \sqrt [ 4 ] { 216 } } { 3 } , x = \sqrt [ 4 ] { 4 }\)
• D) \(x = \pm \frac { \sqrt [ 4 ] { 216 } } { 3 }\)

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