4x^4+99x^2-25=0

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Solution for 4x^4+99x^2-25=0 equation: 


Simplifying
4x4 + 99x2 + -25 = 0

Reorder the terms:
-25 + 99x2 + 4x4 = 0

Solving
-25 + 99x2 + 4x4 = 0

Solving for variable 'x'.

Factor a trinomial.
(-25 + -1x2)(1 + -4x2) = 0

Factor a difference between two squares.
(-25 + -1x2)((1 + 2x)(1 + -2x)) = 0


Subproblem 1
Set the factor '(-25 + -1x2)' equal to zero and attempt to solve:

Simplifying
-25 + -1x2 = 0

Solving
-25 + -1x2 = 0

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

Add '25' to each side of the equation.
-25 + 25 + -1x2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + -1x2 = 0 + 25
-1x2 = 0 + 25

Combine like terms: 0 + 25 = 25
-1x2 = 25

Divide each side by '-1'.
x2 = -25

Simplifying
x2 = -25

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

Subproblem 2
Set the factor '(1 + 2x)' equal to zero and attempt to solve:

Simplifying
1 + 2x = 0

Solving
1 + 2x = 0

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

Add '-1' to each side of the equation.
1 + -1 + 2x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2x = 0 + -1
2x = 0 + -1

Combine like terms: 0 + -1 = -1
2x = -1

Divide each side by '2'.
x = -0.5

Simplifying
x = -0.5

Subproblem 3
Set the factor '(1 + -2x)' equal to zero and attempt to solve:

Simplifying
1 + -2x = 0

Solving
1 + -2x = 0

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

Add '-1' to each side of the equation.
1 + -1 + -2x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -2x = 0 + -1
-2x = 0 + -1

Combine like terms: 0 + -1 = -1
-2x = -1

Divide each side by '-2'.
x = 0.5

Simplifying
x = 0.5
Solution
x = {-0.5, 0.5}

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