2x^4+x^2=49

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Solution for 2x^4+x^2=49 equation:


Simplifying
2x4 + x2 = 49

Reorder the terms:
x2 + 2x4 = 49

Solving
x2 + 2x4 = 49

Solving for variable 'x'.

Reorder the terms:
-49 + x2 + 2x4 = 49 + -49

Combine like terms: 49 + -49 = 0
-49 + x2 + 2x4 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-24.5 + 0.5x2 + x4 = 0

Move the constant term to the right:

Add '24.5' to each side of the equation.
-24.5 + 0.5x2 + 24.5 + x4 = 0 + 24.5

Reorder the terms:
-24.5 + 24.5 + 0.5x2 + x4 = 0 + 24.5

Combine like terms: -24.5 + 24.5 = 0.0
0.0 + 0.5x2 + x4 = 0 + 24.5
0.5x2 + x4 = 0 + 24.5

Combine like terms: 0 + 24.5 = 24.5
0.5x2 + x4 = 24.5

The x term is x2.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.5x2 + 0.25 + x4 = 24.5 + 0.25

Reorder the terms:
0.25 + 0.5x2 + x4 = 24.5 + 0.25

Combine like terms: 24.5 + 0.25 = 24.75
0.25 + 0.5x2 + x4 = 24.75

Factor a perfect square on the left side:
(x2 + 0.5)(x2 + 0.5) = 24.75

Calculate the square root of the right side: 4.974937186

Break this problem into two subproblems by setting 
(x2 + 0.5) equal to 4.974937186 and -4.974937186.

Subproblem 1

x2 + 0.5 = 4.974937186 Simplifying x2 + 0.5 = 4.974937186 Reorder the terms: 0.5 + x2 = 4.974937186 Solving 0.5 + x2 = 4.974937186 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = 4.974937186 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = 4.974937186 + -0.5 x2 = 4.974937186 + -0.5 Combine like terms: 4.974937186 + -0.5 = 4.474937186 x2 = 4.474937186 Simplifying x2 = 4.474937186 Take the square root of each side: x = {-2.115404733, 2.115404733}

Subproblem 2

x2 + 0.5 = -4.974937186 Simplifying x2 + 0.5 = -4.974937186 Reorder the terms: 0.5 + x2 = -4.974937186 Solving 0.5 + x2 = -4.974937186 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = -4.974937186 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = -4.974937186 + -0.5 x2 = -4.974937186 + -0.5 Combine like terms: -4.974937186 + -0.5 = -5.474937186 x2 = -5.474937186 Simplifying x2 = -5.474937186 Reorder the terms: 5.474937186 + x2 = -5.474937186 + 5.474937186 Combine like terms: -5.474937186 + 5.474937186 = 0.000000000 5.474937186 + x2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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