F(x)=5x^4-2x^2-8x+3

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Solution for F(x)=5x^4-2x^2-8x+3 equation: 


Simplifying
F(x) = 5x4 + -2x2 + -8x + 3

Multiply F * x
xF = 5x4 + -2x2 + -8x + 3

Reorder the terms:
xF = 3 + -8x + -2x2 + 5x4

Solving
xF = 3 + -8x + -2x2 + 5x4

Solving for variable 'x'.

Reorder the terms:
-3 + 8x + xF + 2x2 + -5x4 = 3 + -8x + -2x2 + 5x4 + -3 + 8x + 2x2 + -5x4

Reorder the terms:
-3 + 8x + xF + 2x2 + -5x4 = 3 + -3 + -8x + 8x + -2x2 + 2x2 + 5x4 + -5x4

Combine like terms: 3 + -3 = 0
-3 + 8x + xF + 2x2 + -5x4 = 0 + -8x + 8x + -2x2 + 2x2 + 5x4 + -5x4
-3 + 8x + xF + 2x2 + -5x4 = -8x + 8x + -2x2 + 2x2 + 5x4 + -5x4

Combine like terms: -8x + 8x = 0
-3 + 8x + xF + 2x2 + -5x4 = 0 + -2x2 + 2x2 + 5x4 + -5x4
-3 + 8x + xF + 2x2 + -5x4 = -2x2 + 2x2 + 5x4 + -5x4

Combine like terms: -2x2 + 2x2 = 0
-3 + 8x + xF + 2x2 + -5x4 = 0 + 5x4 + -5x4
-3 + 8x + xF + 2x2 + -5x4 = 5x4 + -5x4

Combine like terms: 5x4 + -5x4 = 0
-3 + 8x + xF + 2x2 + -5x4 = 0

The solution to this equation could not be determined.

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