x^2-28x+170=0

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Solution for x^2-28x+170=0 equation:


Simplifying
x2 + -28x + 170 = 0

Reorder the terms:
170 + -28x + x2 = 0

Solving
170 + -28x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-170' to each side of the equation.
170 + -28x + -170 + x2 = 0 + -170

Reorder the terms:
170 + -170 + -28x + x2 = 0 + -170

Combine like terms: 170 + -170 = 0
0 + -28x + x2 = 0 + -170
-28x + x2 = 0 + -170

Combine like terms: 0 + -170 = -170
-28x + x2 = -170

The x term is -28x.  Take half its coefficient (-14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
-28x + 196 + x2 = -170 + 196

Reorder the terms:
196 + -28x + x2 = -170 + 196

Combine like terms: -170 + 196 = 26
196 + -28x + x2 = 26

Factor a perfect square on the left side:
(x + -14)(x + -14) = 26

Calculate the square root of the right side: 5.099019514

Break this problem into two subproblems by setting 
(x + -14) equal to 5.099019514 and -5.099019514.

Subproblem 1

x + -14 = 5.099019514 Simplifying x + -14 = 5.099019514 Reorder the terms: -14 + x = 5.099019514 Solving -14 + x = 5.099019514 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + x = 5.099019514 + 14 Combine like terms: -14 + 14 = 0 0 + x = 5.099019514 + 14 x = 5.099019514 + 14 Combine like terms: 5.099019514 + 14 = 19.099019514 x = 19.099019514 Simplifying x = 19.099019514

Subproblem 2

x + -14 = -5.099019514 Simplifying x + -14 = -5.099019514 Reorder the terms: -14 + x = -5.099019514 Solving -14 + x = -5.099019514 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + x = -5.099019514 + 14 Combine like terms: -14 + 14 = 0 0 + x = -5.099019514 + 14 x = -5.099019514 + 14 Combine like terms: -5.099019514 + 14 = 8.900980486 x = 8.900980486 Simplifying x = 8.900980486

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.099019514, 8.900980486}

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