2m^4-4m^2-1=0

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Solution for 2m^4-4m^2-1=0 equation:


Simplifying
2m4 + -4m2 + -1 = 0

Reorder the terms:
-1 + -4m2 + 2m4 = 0

Solving
-1 + -4m2 + 2m4 = 0

Solving for variable 'm'.

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

Divide each side by '2'.
-0.5 + -2m2 + m4 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -2m2 + 0.5 + m4 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -2m2 + m4 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -2m2 + m4 = 0 + 0.5
-2m2 + m4 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-2m2 + m4 = 0.5

The m term is -2m2.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2m2 + 1 + m4 = 0.5 + 1

Reorder the terms:
1 + -2m2 + m4 = 0.5 + 1

Combine like terms: 0.5 + 1 = 1.5
1 + -2m2 + m4 = 1.5

Factor a perfect square on the left side:
(m2 + -1)(m2 + -1) = 1.5

Calculate the square root of the right side: 1.224744871

Break this problem into two subproblems by setting 
(m2 + -1) equal to 1.224744871 and -1.224744871.

Subproblem 1

m2 + -1 = 1.224744871 Simplifying m2 + -1 = 1.224744871 Reorder the terms: -1 + m2 = 1.224744871 Solving -1 + m2 = 1.224744871 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m2 = 1.224744871 + 1 Combine like terms: -1 + 1 = 0 0 + m2 = 1.224744871 + 1 m2 = 1.224744871 + 1 Combine like terms: 1.224744871 + 1 = 2.224744871 m2 = 2.224744871 Simplifying m2 = 2.224744871 Take the square root of each side: m = {-1.491557867, 1.491557867}

Subproblem 2

m2 + -1 = -1.224744871 Simplifying m2 + -1 = -1.224744871 Reorder the terms: -1 + m2 = -1.224744871 Solving -1 + m2 = -1.224744871 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m2 = -1.224744871 + 1 Combine like terms: -1 + 1 = 0 0 + m2 = -1.224744871 + 1 m2 = -1.224744871 + 1 Combine like terms: -1.224744871 + 1 = -0.224744871 m2 = -0.224744871 Simplifying m2 = -0.224744871 Reorder the terms: 0.224744871 + m2 = -0.224744871 + 0.224744871 Combine like terms: -0.224744871 + 0.224744871 = 0.000000000 0.224744871 + m2 = 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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