2-2x-x+x*x=0.04x*x

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Solution for 2-2x-x+x*x=0.04x*x equation:


Simplifying
2 + -2x + -1x + x * x = 0.04x * x

Multiply x * x
2 + -2x + -1x + x2 = 0.04x * x

Combine like terms: -2x + -1x = -3x
2 + -3x + x2 = 0.04x * x

Multiply x * x
2 + -3x + x2 = 0.04x2

Solving
2 + -3x + x2 = 0.04x2

Solving for variable 'x'.

Combine like terms: x2 + -0.04x2 = 0.96x2
2 + -3x + 0.96x2 = 0.04x2 + -0.04x2

Combine like terms: 0.04x2 + -0.04x2 = 0.00
2 + -3x + 0.96x2 = 0.00

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

Divide each side by '0.96'.
2.083333333 + -3.125x + x2 = 0

Move the constant term to the right:

Add '-2.083333333' to each side of the equation.
2.083333333 + -3.125x + -2.083333333 + x2 = 0 + -2.083333333

Reorder the terms:
2.083333333 + -2.083333333 + -3.125x + x2 = 0 + -2.083333333

Combine like terms: 2.083333333 + -2.083333333 = 0.000000000
0.000000000 + -3.125x + x2 = 0 + -2.083333333
-3.125x + x2 = 0 + -2.083333333

Combine like terms: 0 + -2.083333333 = -2.083333333
-3.125x + x2 = -2.083333333

The x term is -3.125x.  Take half its coefficient (-1.5625).
Square it (2.44140625) and add it to both sides.

Add '2.44140625' to each side of the equation.
-3.125x + 2.44140625 + x2 = -2.083333333 + 2.44140625

Reorder the terms:
2.44140625 + -3.125x + x2 = -2.083333333 + 2.44140625

Combine like terms: -2.083333333 + 2.44140625 = 0.358072917
2.44140625 + -3.125x + x2 = 0.358072917

Factor a perfect square on the left side:
(x + -1.5625)(x + -1.5625) = 0.358072917

Calculate the square root of the right side: 0.598391943

Break this problem into two subproblems by setting 
(x + -1.5625) equal to 0.598391943 and -0.598391943.

Subproblem 1

x + -1.5625 = 0.598391943 Simplifying x + -1.5625 = 0.598391943 Reorder the terms: -1.5625 + x = 0.598391943 Solving -1.5625 + x = 0.598391943 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5625' to each side of the equation. -1.5625 + 1.5625 + x = 0.598391943 + 1.5625 Combine like terms: -1.5625 + 1.5625 = 0.0000 0.0000 + x = 0.598391943 + 1.5625 x = 0.598391943 + 1.5625 Combine like terms: 0.598391943 + 1.5625 = 2.160891943 x = 2.160891943 Simplifying x = 2.160891943

Subproblem 2

x + -1.5625 = -0.598391943 Simplifying x + -1.5625 = -0.598391943 Reorder the terms: -1.5625 + x = -0.598391943 Solving -1.5625 + x = -0.598391943 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5625' to each side of the equation. -1.5625 + 1.5625 + x = -0.598391943 + 1.5625 Combine like terms: -1.5625 + 1.5625 = 0.0000 0.0000 + x = -0.598391943 + 1.5625 x = -0.598391943 + 1.5625 Combine like terms: -0.598391943 + 1.5625 = 0.964108057 x = 0.964108057 Simplifying x = 0.964108057

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.160891943, 0.964108057}

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