-x^2+4=(3x-1)(3x-1)

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Solution for -x^2+4=(3x-1)(3x-1) equation:


Simplifying
-1x2 + 4 = (3x + -1)(3x + -1)

Reorder the terms:
4 + -1x2 = (3x + -1)(3x + -1)

Reorder the terms:
4 + -1x2 = (-1 + 3x)(3x + -1)

Reorder the terms:
4 + -1x2 = (-1 + 3x)(-1 + 3x)

Multiply (-1 + 3x) * (-1 + 3x)
4 + -1x2 = (-1(-1 + 3x) + 3x * (-1 + 3x))
4 + -1x2 = ((-1 * -1 + 3x * -1) + 3x * (-1 + 3x))
4 + -1x2 = ((1 + -3x) + 3x * (-1 + 3x))
4 + -1x2 = (1 + -3x + (-1 * 3x + 3x * 3x))
4 + -1x2 = (1 + -3x + (-3x + 9x2))

Combine like terms: -3x + -3x = -6x
4 + -1x2 = (1 + -6x + 9x2)

Solving
4 + -1x2 = 1 + -6x + 9x2

Solving for variable 'x'.

Reorder the terms:
4 + -1 + 6x + -1x2 + -9x2 = 1 + -6x + 9x2 + -1 + 6x + -9x2

Combine like terms: 4 + -1 = 3
3 + 6x + -1x2 + -9x2 = 1 + -6x + 9x2 + -1 + 6x + -9x2

Combine like terms: -1x2 + -9x2 = -10x2
3 + 6x + -10x2 = 1 + -6x + 9x2 + -1 + 6x + -9x2

Reorder the terms:
3 + 6x + -10x2 = 1 + -1 + -6x + 6x + 9x2 + -9x2

Combine like terms: 1 + -1 = 0
3 + 6x + -10x2 = 0 + -6x + 6x + 9x2 + -9x2
3 + 6x + -10x2 = -6x + 6x + 9x2 + -9x2

Combine like terms: -6x + 6x = 0
3 + 6x + -10x2 = 0 + 9x2 + -9x2
3 + 6x + -10x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
3 + 6x + -10x2 = 0

Begin completing the square.  Divide all terms by
-10 the coefficient of the squared term: 

Divide each side by '-10'.
-0.3 + -0.6x + x2 = 0.0

Move the constant term to the right:

Add '0.3' to each side of the equation.
-0.3 + -0.6x + 0.3 + x2 = 0.0 + 0.3

Reorder the terms:
-0.3 + 0.3 + -0.6x + x2 = 0.0 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + -0.6x + x2 = 0.0 + 0.3
-0.6x + x2 = 0.0 + 0.3

Combine like terms: 0.0 + 0.3 = 0.3
-0.6x + x2 = 0.3

The x term is -0.6x.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6x + 0.09 + x2 = 0.3 + 0.09

Reorder the terms:
0.09 + -0.6x + x2 = 0.3 + 0.09

Combine like terms: 0.3 + 0.09 = 0.39
0.09 + -0.6x + x2 = 0.39

Factor a perfect square on the left side:
(x + -0.3)(x + -0.3) = 0.39

Calculate the square root of the right side: 0.6244998

Break this problem into two subproblems by setting 
(x + -0.3) equal to 0.6244998 and -0.6244998.

Subproblem 1

x + -0.3 = 0.6244998 Simplifying x + -0.3 = 0.6244998 Reorder the terms: -0.3 + x = 0.6244998 Solving -0.3 + x = 0.6244998 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = 0.6244998 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = 0.6244998 + 0.3 x = 0.6244998 + 0.3 Combine like terms: 0.6244998 + 0.3 = 0.9244998 x = 0.9244998 Simplifying x = 0.9244998

Subproblem 2

x + -0.3 = -0.6244998 Simplifying x + -0.3 = -0.6244998 Reorder the terms: -0.3 + x = -0.6244998 Solving -0.3 + x = -0.6244998 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = -0.6244998 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = -0.6244998 + 0.3 x = -0.6244998 + 0.3 Combine like terms: -0.6244998 + 0.3 = -0.3244998 x = -0.3244998 Simplifying x = -0.3244998

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.9244998, -0.3244998}

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