X^4-5x^2-28x-84=0

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Solution for X^4-5x^2-28x-84=0 equation:


Simplifying
X4 + -5x2 + -28x + -84 = 0

Reorder the terms:
-84 + X4 + -28x + -5x2 = 0

Solving
-84 + X4 + -28x + -5x2 = 0

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '84' to each side of the equation.
-84 + X4 + -28x + 84 + -5x2 = 0 + 84

Reorder the terms:
-84 + 84 + X4 + -28x + -5x2 = 0 + 84

Combine like terms: -84 + 84 = 0
0 + X4 + -28x + -5x2 = 0 + 84
X4 + -28x + -5x2 = 0 + 84

Combine like terms: 0 + 84 = 84
X4 + -28x + -5x2 = 84

Add '28x' to each side of the equation.
X4 + -28x + 28x + -5x2 = 84 + 28x

Combine like terms: -28x + 28x = 0
X4 + 0 + -5x2 = 84 + 28x
X4 + -5x2 = 84 + 28x

Add '5x2' to each side of the equation.
X4 + -5x2 + 5x2 = 84 + 28x + 5x2

Combine like terms: -5x2 + 5x2 = 0
X4 + 0 = 84 + 28x + 5x2
X4 = 84 + 28x + 5x2

Simplifying
X4 = 84 + 28x + 5x2

Reorder the terms:
-84 + X4 + -28x + -5x2 = 84 + 28x + 5x2 + -84 + -28x + -5x2

Reorder the terms:
-84 + X4 + -28x + -5x2 = 84 + -84 + 28x + -28x + 5x2 + -5x2

Combine like terms: 84 + -84 = 0
-84 + X4 + -28x + -5x2 = 0 + 28x + -28x + 5x2 + -5x2
-84 + X4 + -28x + -5x2 = 28x + -28x + 5x2 + -5x2

Combine like terms: 28x + -28x = 0
-84 + X4 + -28x + -5x2 = 0 + 5x2 + -5x2
-84 + X4 + -28x + -5x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-84 + X4 + -28x + -5x2 = 0

The solution to this equation could not be determined.

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