4x^2-16x+4=10x-x^2-16

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Solution for 4x^2-16x+4=10x-x^2-16 equation:


Simplifying
4x2 + -16x + 4 = 10x + -1x2 + -16

Reorder the terms:
4 + -16x + 4x2 = 10x + -1x2 + -16

Reorder the terms:
4 + -16x + 4x2 = -16 + 10x + -1x2

Solving
4 + -16x + 4x2 = -16 + 10x + -1x2

Solving for variable 'x'.

Reorder the terms:
4 + 16 + -16x + -10x + 4x2 + x2 = -16 + 10x + -1x2 + 16 + -10x + x2

Combine like terms: 4 + 16 = 20
20 + -16x + -10x + 4x2 + x2 = -16 + 10x + -1x2 + 16 + -10x + x2

Combine like terms: -16x + -10x = -26x
20 + -26x + 4x2 + x2 = -16 + 10x + -1x2 + 16 + -10x + x2

Combine like terms: 4x2 + x2 = 5x2
20 + -26x + 5x2 = -16 + 10x + -1x2 + 16 + -10x + x2

Reorder the terms:
20 + -26x + 5x2 = -16 + 16 + 10x + -10x + -1x2 + x2

Combine like terms: -16 + 16 = 0
20 + -26x + 5x2 = 0 + 10x + -10x + -1x2 + x2
20 + -26x + 5x2 = 10x + -10x + -1x2 + x2

Combine like terms: 10x + -10x = 0
20 + -26x + 5x2 = 0 + -1x2 + x2
20 + -26x + 5x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
20 + -26x + 5x2 = 0

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

Divide each side by '5'.
4 + -5.2x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -5.2x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -5.2x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -5.2x + x2 = 0 + -4
-5.2x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-5.2x + x2 = -4

The x term is -5.2x.  Take half its coefficient (-2.6).
Square it (6.76) and add it to both sides.

Add '6.76' to each side of the equation.
-5.2x + 6.76 + x2 = -4 + 6.76

Reorder the terms:
6.76 + -5.2x + x2 = -4 + 6.76

Combine like terms: -4 + 6.76 = 2.76
6.76 + -5.2x + x2 = 2.76

Factor a perfect square on the left side:
(x + -2.6)(x + -2.6) = 2.76

Calculate the square root of the right side: 1.661324773

Break this problem into two subproblems by setting 
(x + -2.6) equal to 1.661324773 and -1.661324773.

Subproblem 1

x + -2.6 = 1.661324773 Simplifying x + -2.6 = 1.661324773 Reorder the terms: -2.6 + x = 1.661324773 Solving -2.6 + x = 1.661324773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.6' to each side of the equation. -2.6 + 2.6 + x = 1.661324773 + 2.6 Combine like terms: -2.6 + 2.6 = 0.0 0.0 + x = 1.661324773 + 2.6 x = 1.661324773 + 2.6 Combine like terms: 1.661324773 + 2.6 = 4.261324773 x = 4.261324773 Simplifying x = 4.261324773

Subproblem 2

x + -2.6 = -1.661324773 Simplifying x + -2.6 = -1.661324773 Reorder the terms: -2.6 + x = -1.661324773 Solving -2.6 + x = -1.661324773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.6' to each side of the equation. -2.6 + 2.6 + x = -1.661324773 + 2.6 Combine like terms: -2.6 + 2.6 = 0.0 0.0 + x = -1.661324773 + 2.6 x = -1.661324773 + 2.6 Combine like terms: -1.661324773 + 2.6 = 0.938675227 x = 0.938675227 Simplifying x = 0.938675227

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.261324773, 0.938675227}

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