x^2-35x-196=0

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Solution for x^2-35x-196=0 equation:


Simplifying
x2 + -35x + -196 = 0

Reorder the terms:
-196 + -35x + x2 = 0

Solving
-196 + -35x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '196' to each side of the equation.
-196 + -35x + 196 + x2 = 0 + 196

Reorder the terms:
-196 + 196 + -35x + x2 = 0 + 196

Combine like terms: -196 + 196 = 0
0 + -35x + x2 = 0 + 196
-35x + x2 = 0 + 196

Combine like terms: 0 + 196 = 196
-35x + x2 = 196

The x term is -35x.  Take half its coefficient (-17.5).
Square it (306.25) and add it to both sides.

Add '306.25' to each side of the equation.
-35x + 306.25 + x2 = 196 + 306.25

Reorder the terms:
306.25 + -35x + x2 = 196 + 306.25

Combine like terms: 196 + 306.25 = 502.25
306.25 + -35x + x2 = 502.25

Factor a perfect square on the left side:
(x + -17.5)(x + -17.5) = 502.25

Calculate the square root of the right side: 22.410934831

Break this problem into two subproblems by setting 
(x + -17.5) equal to 22.410934831 and -22.410934831.

Subproblem 1

x + -17.5 = 22.410934831 Simplifying x + -17.5 = 22.410934831 Reorder the terms: -17.5 + x = 22.410934831 Solving -17.5 + x = 22.410934831 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '17.5' to each side of the equation. -17.5 + 17.5 + x = 22.410934831 + 17.5 Combine like terms: -17.5 + 17.5 = 0.0 0.0 + x = 22.410934831 + 17.5 x = 22.410934831 + 17.5 Combine like terms: 22.410934831 + 17.5 = 39.910934831 x = 39.910934831 Simplifying x = 39.910934831

Subproblem 2

x + -17.5 = -22.410934831 Simplifying x + -17.5 = -22.410934831 Reorder the terms: -17.5 + x = -22.410934831 Solving -17.5 + x = -22.410934831 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '17.5' to each side of the equation. -17.5 + 17.5 + x = -22.410934831 + 17.5 Combine like terms: -17.5 + 17.5 = 0.0 0.0 + x = -22.410934831 + 17.5 x = -22.410934831 + 17.5 Combine like terms: -22.410934831 + 17.5 = -4.910934831 x = -4.910934831 Simplifying x = -4.910934831

Solution

The solution to the problem is based on the solutions from the subproblems. x = {39.910934831, -4.910934831}

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