5x^2-22x+10=0

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Solution for 5x^2-22x+10=0 equation:


Simplifying
5x2 + -22x + 10 = 0

Reorder the terms:
10 + -22x + 5x2 = 0

Solving
10 + -22x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
2 + -4.4x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -4.4x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -4.4x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -4.4x + x2 = 0 + -2
-4.4x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-4.4x + x2 = -2

The x term is -4.4x.  Take half its coefficient (-2.2).
Square it (4.84) and add it to both sides.

Add '4.84' to each side of the equation.
-4.4x + 4.84 + x2 = -2 + 4.84

Reorder the terms:
4.84 + -4.4x + x2 = -2 + 4.84

Combine like terms: -2 + 4.84 = 2.84
4.84 + -4.4x + x2 = 2.84

Factor a perfect square on the left side:
(x + -2.2)(x + -2.2) = 2.84

Calculate the square root of the right side: 1.685229955

Break this problem into two subproblems by setting 
(x + -2.2) equal to 1.685229955 and -1.685229955.

Subproblem 1

x + -2.2 = 1.685229955 Simplifying x + -2.2 = 1.685229955 Reorder the terms: -2.2 + x = 1.685229955 Solving -2.2 + x = 1.685229955 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.2' to each side of the equation. -2.2 + 2.2 + x = 1.685229955 + 2.2 Combine like terms: -2.2 + 2.2 = 0.0 0.0 + x = 1.685229955 + 2.2 x = 1.685229955 + 2.2 Combine like terms: 1.685229955 + 2.2 = 3.885229955 x = 3.885229955 Simplifying x = 3.885229955

Subproblem 2

x + -2.2 = -1.685229955 Simplifying x + -2.2 = -1.685229955 Reorder the terms: -2.2 + x = -1.685229955 Solving -2.2 + x = -1.685229955 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.2' to each side of the equation. -2.2 + 2.2 + x = -1.685229955 + 2.2 Combine like terms: -2.2 + 2.2 = 0.0 0.0 + x = -1.685229955 + 2.2 x = -1.685229955 + 2.2 Combine like terms: -1.685229955 + 2.2 = 0.514770045 x = 0.514770045 Simplifying x = 0.514770045

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.885229955, 0.514770045}

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