x^2-210x+70=0

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Solution for x^2-210x+70=0 equation:


Simplifying
x2 + -210x + 70 = 0

Reorder the terms:
70 + -210x + x2 = 0

Solving
70 + -210x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-70' to each side of the equation.
70 + -210x + -70 + x2 = 0 + -70

Reorder the terms:
70 + -70 + -210x + x2 = 0 + -70

Combine like terms: 70 + -70 = 0
0 + -210x + x2 = 0 + -70
-210x + x2 = 0 + -70

Combine like terms: 0 + -70 = -70
-210x + x2 = -70

The x term is -210x.  Take half its coefficient (-105).
Square it (11025) and add it to both sides.

Add '11025' to each side of the equation.
-210x + 11025 + x2 = -70 + 11025

Reorder the terms:
11025 + -210x + x2 = -70 + 11025

Combine like terms: -70 + 11025 = 10955
11025 + -210x + x2 = 10955

Factor a perfect square on the left side:
(x + -105)(x + -105) = 10955

Calculate the square root of the right side: 104.66613588

Break this problem into two subproblems by setting 
(x + -105) equal to 104.66613588 and -104.66613588.

Subproblem 1

x + -105 = 104.66613588 Simplifying x + -105 = 104.66613588 Reorder the terms: -105 + x = 104.66613588 Solving -105 + x = 104.66613588 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '105' to each side of the equation. -105 + 105 + x = 104.66613588 + 105 Combine like terms: -105 + 105 = 0 0 + x = 104.66613588 + 105 x = 104.66613588 + 105 Combine like terms: 104.66613588 + 105 = 209.66613588 x = 209.66613588 Simplifying x = 209.66613588

Subproblem 2

x + -105 = -104.66613588 Simplifying x + -105 = -104.66613588 Reorder the terms: -105 + x = -104.66613588 Solving -105 + x = -104.66613588 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '105' to each side of the equation. -105 + 105 + x = -104.66613588 + 105 Combine like terms: -105 + 105 = 0 0 + x = -104.66613588 + 105 x = -104.66613588 + 105 Combine like terms: -104.66613588 + 105 = 0.33386412 x = 0.33386412 Simplifying x = 0.33386412

Solution

The solution to the problem is based on the solutions from the subproblems. x = {209.66613588, 0.33386412}

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