-x^2+35x-47=0

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Solution for -x^2+35x-47=0 equation:


Simplifying
-1x2 + 35x + -47 = 0

Reorder the terms:
-47 + 35x + -1x2 = 0

Solving
-47 + 35x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
47 + -35x + x2 = 0

Move the constant term to the right:

Add '-47' to each side of the equation.
47 + -35x + -47 + x2 = 0 + -47

Reorder the terms:
47 + -47 + -35x + x2 = 0 + -47

Combine like terms: 47 + -47 = 0
0 + -35x + x2 = 0 + -47
-35x + x2 = 0 + -47

Combine like terms: 0 + -47 = -47
-35x + x2 = -47

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 = -47 + 306.25

Reorder the terms:
306.25 + -35x + x2 = -47 + 306.25

Combine like terms: -47 + 306.25 = 259.25
306.25 + -35x + x2 = 259.25

Factor a perfect square on the left side:
(x + -17.5)(x + -17.5) = 259.25

Calculate the square root of the right side: 16.101242188

Break this problem into two subproblems by setting 
(x + -17.5) equal to 16.101242188 and -16.101242188.

Subproblem 1

x + -17.5 = 16.101242188 Simplifying x + -17.5 = 16.101242188 Reorder the terms: -17.5 + x = 16.101242188 Solving -17.5 + x = 16.101242188 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 = 16.101242188 + 17.5 Combine like terms: -17.5 + 17.5 = 0.0 0.0 + x = 16.101242188 + 17.5 x = 16.101242188 + 17.5 Combine like terms: 16.101242188 + 17.5 = 33.601242188 x = 33.601242188 Simplifying x = 33.601242188

Subproblem 2

x + -17.5 = -16.101242188 Simplifying x + -17.5 = -16.101242188 Reorder the terms: -17.5 + x = -16.101242188 Solving -17.5 + x = -16.101242188 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 = -16.101242188 + 17.5 Combine like terms: -17.5 + 17.5 = 0.0 0.0 + x = -16.101242188 + 17.5 x = -16.101242188 + 17.5 Combine like terms: -16.101242188 + 17.5 = 1.398757812 x = 1.398757812 Simplifying x = 1.398757812

Solution

The solution to the problem is based on the solutions from the subproblems. x = {33.601242188, 1.398757812}

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