23d-50-d^2=0

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Solution for 23d-50-d^2=0 equation:


Simplifying
23d + -50 + -1d2 = 0

Reorder the terms:
-50 + 23d + -1d2 = 0

Solving
-50 + 23d + -1d2 = 0

Solving for variable 'd'.

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

Divide each side by '-1'.
50 + -23d + d2 = 0

Move the constant term to the right:

Add '-50' to each side of the equation.
50 + -23d + -50 + d2 = 0 + -50

Reorder the terms:
50 + -50 + -23d + d2 = 0 + -50

Combine like terms: 50 + -50 = 0
0 + -23d + d2 = 0 + -50
-23d + d2 = 0 + -50

Combine like terms: 0 + -50 = -50
-23d + d2 = -50

The d term is -23d.  Take half its coefficient (-11.5).
Square it (132.25) and add it to both sides.

Add '132.25' to each side of the equation.
-23d + 132.25 + d2 = -50 + 132.25

Reorder the terms:
132.25 + -23d + d2 = -50 + 132.25

Combine like terms: -50 + 132.25 = 82.25
132.25 + -23d + d2 = 82.25

Factor a perfect square on the left side:
(d + -11.5)(d + -11.5) = 82.25

Calculate the square root of the right side: 9.069178574

Break this problem into two subproblems by setting 
(d + -11.5) equal to 9.069178574 and -9.069178574.

Subproblem 1

d + -11.5 = 9.069178574 Simplifying d + -11.5 = 9.069178574 Reorder the terms: -11.5 + d = 9.069178574 Solving -11.5 + d = 9.069178574 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '11.5' to each side of the equation. -11.5 + 11.5 + d = 9.069178574 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + d = 9.069178574 + 11.5 d = 9.069178574 + 11.5 Combine like terms: 9.069178574 + 11.5 = 20.569178574 d = 20.569178574 Simplifying d = 20.569178574

Subproblem 2

d + -11.5 = -9.069178574 Simplifying d + -11.5 = -9.069178574 Reorder the terms: -11.5 + d = -9.069178574 Solving -11.5 + d = -9.069178574 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '11.5' to each side of the equation. -11.5 + 11.5 + d = -9.069178574 + 11.5 Combine like terms: -11.5 + 11.5 = 0.0 0.0 + d = -9.069178574 + 11.5 d = -9.069178574 + 11.5 Combine like terms: -9.069178574 + 11.5 = 2.430821426 d = 2.430821426 Simplifying d = 2.430821426

Solution

The solution to the problem is based on the solutions from the subproblems. d = {20.569178574, 2.430821426}

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