Find all valid real roots for the equation.
-$$x ^ { 8 } = 5 x ^ { 4 } - 4$$
A) $x = \pm \sqrt [ 4 ] { 1 } , x = \pm \sqrt [ 4 ] { 4 }$
B) $x = 1 , x = 4$
C) $x = \pm 1 , x = \pm \sqrt [ 4 ] { 4 }$
D) $x = \pm \sqrt [ 4 ] { 1 } , x = 4$

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The Answer of Find all valid real roots for the equation.
-$$x ^ { 8 } = 5 x ^ { 4 } - 4$$
A) $x = \pm \sqrt [ 4 ] { 1 } , x = \pm \sqrt [ 4 ] { 4 }$
B) $x = 1 , x = 4$
C) $x = \pm 1 , x = \pm \sqrt [ 4 ] { 4 }$
D) $x = \pm \sqrt [ 4 ] { 1 } , x = 4$

Find All Valid Real Roots for the Equation x8=5x4−4x ^ { 8 } = 5 x ^ { 4 } - 4x8=5x4−4

Find All Valid Real Roots for the Equation $x ^ { 8 } = 5 x ^ { 4 } - 4$