1.99=(x^2)-4x+5

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Solution for 1.99=(x^2)-4x+5 equation:


Simplifying
1.99 = (x2) + -4x + 5
1.99 = x2 + -4x + 5

Reorder the terms:
1.99 = 5 + -4x + x2

Solving
1.99 = 5 + -4x + x2

Solving for variable 'x'.

Combine like terms: 1.99 + -5 = -3.01
-3.01 + 4x + -1x2 = 5 + -4x + x2 + -5 + 4x + -1x2

Reorder the terms:
-3.01 + 4x + -1x2 = 5 + -5 + -4x + 4x + x2 + -1x2

Combine like terms: 5 + -5 = 0
-3.01 + 4x + -1x2 = 0 + -4x + 4x + x2 + -1x2
-3.01 + 4x + -1x2 = -4x + 4x + x2 + -1x2

Combine like terms: -4x + 4x = 0
-3.01 + 4x + -1x2 = 0 + x2 + -1x2
-3.01 + 4x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-3.01 + 4x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
3.01 + -4x + x2 = 0

Move the constant term to the right:

Add '-3.01' to each side of the equation.
3.01 + -4x + -3.01 + x2 = 0 + -3.01

Reorder the terms:
3.01 + -3.01 + -4x + x2 = 0 + -3.01

Combine like terms: 3.01 + -3.01 = 0.00
0.00 + -4x + x2 = 0 + -3.01
-4x + x2 = 0 + -3.01

Combine like terms: 0 + -3.01 = -3.01
-4x + x2 = -3.01

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -3.01 + 4

Reorder the terms:
4 + -4x + x2 = -3.01 + 4

Combine like terms: -3.01 + 4 = 0.99
4 + -4x + x2 = 0.99

Factor a perfect square on the left side:
(x + -2)(x + -2) = 0.99

Calculate the square root of the right side: 0.994987437

Break this problem into two subproblems by setting 
(x + -2) equal to 0.994987437 and -0.994987437.

Subproblem 1

x + -2 = 0.994987437 Simplifying x + -2 = 0.994987437 Reorder the terms: -2 + x = 0.994987437 Solving -2 + x = 0.994987437 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 0.994987437 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0.994987437 + 2 x = 0.994987437 + 2 Combine like terms: 0.994987437 + 2 = 2.994987437 x = 2.994987437 Simplifying x = 2.994987437

Subproblem 2

x + -2 = -0.994987437 Simplifying x + -2 = -0.994987437 Reorder the terms: -2 + x = -0.994987437 Solving -2 + x = -0.994987437 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -0.994987437 + 2 Combine like terms: -2 + 2 = 0 0 + x = -0.994987437 + 2 x = -0.994987437 + 2 Combine like terms: -0.994987437 + 2 = 1.005012563 x = 1.005012563 Simplifying x = 1.005012563

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.994987437, 1.005012563}

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