4*x^2*(1-x^2)=0.1

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Solution for 4*x^2*(1-x^2)=0.1 equation:


Simplifying
4x2(1 + -1x2) = 0.1
(1 * 4x2 + -1x2 * 4x2) = 0.1
(4x2 + -4x4) = 0.1

Solving
4x2 + -4x4 = 0.1

Solving for variable 'x'.

Reorder the terms:
-0.1 + 4x2 + -4x4 = 0.1 + -0.1

Combine like terms: 0.1 + -0.1 = 0.0
-0.1 + 4x2 + -4x4 = 0.0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
0.025 + -1x2 + x4 = 0.0

Move the constant term to the right:

Add '-0.025' to each side of the equation.
0.025 + -1x2 + -0.025 + x4 = 0.0 + -0.025

Reorder the terms:
0.025 + -0.025 + -1x2 + x4 = 0.0 + -0.025

Combine like terms: 0.025 + -0.025 = 0.000
0.000 + -1x2 + x4 = 0.0 + -0.025
-1x2 + x4 = 0.0 + -0.025

Combine like terms: 0.0 + -0.025 = -0.025
-1x2 + x4 = -0.025

The x term is -1x2.  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.
-1x2 + 0.25 + x4 = -0.025 + 0.25

Reorder the terms:
0.25 + -1x2 + x4 = -0.025 + 0.25

Combine like terms: -0.025 + 0.25 = 0.225
0.25 + -1x2 + x4 = 0.225

Factor a perfect square on the left side:
(x2 + -0.5)(x2 + -0.5) = 0.225

Calculate the square root of the right side: 0.474341649

Break this problem into two subproblems by setting 
(x2 + -0.5) equal to 0.474341649 and -0.474341649.

Subproblem 1

x2 + -0.5 = 0.474341649 Simplifying x2 + -0.5 = 0.474341649 Reorder the terms: -0.5 + x2 = 0.474341649 Solving -0.5 + x2 = 0.474341649 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 = 0.474341649 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x2 = 0.474341649 + 0.5 x2 = 0.474341649 + 0.5 Combine like terms: 0.474341649 + 0.5 = 0.974341649 x2 = 0.974341649 Simplifying x2 = 0.974341649 Take the square root of each side: x = {-0.987087458, 0.987087458}

Subproblem 2

x2 + -0.5 = -0.474341649 Simplifying x2 + -0.5 = -0.474341649 Reorder the terms: -0.5 + x2 = -0.474341649 Solving -0.5 + x2 = -0.474341649 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 = -0.474341649 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x2 = -0.474341649 + 0.5 x2 = -0.474341649 + 0.5 Combine like terms: -0.474341649 + 0.5 = 0.025658351 x2 = 0.025658351 Simplifying x2 = 0.025658351 Take the square root of each side: x = {-0.160182243, 0.160182243}

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.987087458, 0.987087458, -0.160182243, 0.160182243}

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