20x^2+10=200x-1

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Solution for 20x^2+10=200x-1 equation:


Simplifying
20x2 + 10 = 200x + -1

Reorder the terms:
10 + 20x2 = 200x + -1

Reorder the terms:
10 + 20x2 = -1 + 200x

Solving
10 + 20x2 = -1 + 200x

Solving for variable 'x'.

Reorder the terms:
10 + 1 + -200x + 20x2 = -1 + 200x + 1 + -200x

Combine like terms: 10 + 1 = 11
11 + -200x + 20x2 = -1 + 200x + 1 + -200x

Reorder the terms:
11 + -200x + 20x2 = -1 + 1 + 200x + -200x

Combine like terms: -1 + 1 = 0
11 + -200x + 20x2 = 0 + 200x + -200x
11 + -200x + 20x2 = 200x + -200x

Combine like terms: 200x + -200x = 0
11 + -200x + 20x2 = 0

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

Divide each side by '20'.
0.55 + -10x + x2 = 0

Move the constant term to the right:

Add '-0.55' to each side of the equation.
0.55 + -10x + -0.55 + x2 = 0 + -0.55

Reorder the terms:
0.55 + -0.55 + -10x + x2 = 0 + -0.55

Combine like terms: 0.55 + -0.55 = 0.00
0.00 + -10x + x2 = 0 + -0.55
-10x + x2 = 0 + -0.55

Combine like terms: 0 + -0.55 = -0.55
-10x + x2 = -0.55

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = -0.55 + 25

Reorder the terms:
25 + -10x + x2 = -0.55 + 25

Combine like terms: -0.55 + 25 = 24.45
25 + -10x + x2 = 24.45

Factor a perfect square on the left side:
(x + -5)(x + -5) = 24.45

Calculate the square root of the right side: 4.944694126

Break this problem into two subproblems by setting 
(x + -5) equal to 4.944694126 and -4.944694126.

Subproblem 1

x + -5 = 4.944694126 Simplifying x + -5 = 4.944694126 Reorder the terms: -5 + x = 4.944694126 Solving -5 + x = 4.944694126 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 4.944694126 + 5 Combine like terms: -5 + 5 = 0 0 + x = 4.944694126 + 5 x = 4.944694126 + 5 Combine like terms: 4.944694126 + 5 = 9.944694126 x = 9.944694126 Simplifying x = 9.944694126

Subproblem 2

x + -5 = -4.944694126 Simplifying x + -5 = -4.944694126 Reorder the terms: -5 + x = -4.944694126 Solving -5 + x = -4.944694126 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -4.944694126 + 5 Combine like terms: -5 + 5 = 0 0 + x = -4.944694126 + 5 x = -4.944694126 + 5 Combine like terms: -4.944694126 + 5 = 0.055305874 x = 0.055305874 Simplifying x = 0.055305874

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.944694126, 0.055305874}

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