6d^2+11d-3=0

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Solution for 6d^2+11d-3=0 equation:


Simplifying
6d2 + 11d + -3 = 0

Reorder the terms:
-3 + 11d + 6d2 = 0

Solving
-3 + 11d + 6d2 = 0

Solving for variable 'd'.

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

Divide each side by '6'.
-0.5 + 1.833333333d + d2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + 1.833333333d + 0.5 + d2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + 1.833333333d + d2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 1.833333333d + d2 = 0 + 0.5
1.833333333d + d2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
1.833333333d + d2 = 0.5

The d term is 1.833333333d.  Take half its coefficient (0.9166666665).
Square it (0.8402777775) and add it to both sides.

Add '0.8402777775' to each side of the equation.
1.833333333d + 0.8402777775 + d2 = 0.5 + 0.8402777775

Reorder the terms:
0.8402777775 + 1.833333333d + d2 = 0.5 + 0.8402777775

Combine like terms: 0.5 + 0.8402777775 = 1.3402777775
0.8402777775 + 1.833333333d + d2 = 1.3402777775

Factor a perfect square on the left side:
(d + 0.9166666665)(d + 0.9166666665) = 1.3402777775

Calculate the square root of the right side: 1.157703666

Break this problem into two subproblems by setting 
(d + 0.9166666665) equal to 1.157703666 and -1.157703666.

Subproblem 1

d + 0.9166666665 = 1.157703666 Simplifying d + 0.9166666665 = 1.157703666 Reorder the terms: 0.9166666665 + d = 1.157703666 Solving 0.9166666665 + d = 1.157703666 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + d = 1.157703666 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + d = 1.157703666 + -0.9166666665 d = 1.157703666 + -0.9166666665 Combine like terms: 1.157703666 + -0.9166666665 = 0.2410369995 d = 0.2410369995 Simplifying d = 0.2410369995

Subproblem 2

d + 0.9166666665 = -1.157703666 Simplifying d + 0.9166666665 = -1.157703666 Reorder the terms: 0.9166666665 + d = -1.157703666 Solving 0.9166666665 + d = -1.157703666 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-0.9166666665' to each side of the equation. 0.9166666665 + -0.9166666665 + d = -1.157703666 + -0.9166666665 Combine like terms: 0.9166666665 + -0.9166666665 = 0.0000000000 0.0000000000 + d = -1.157703666 + -0.9166666665 d = -1.157703666 + -0.9166666665 Combine like terms: -1.157703666 + -0.9166666665 = -2.0743703325 d = -2.0743703325 Simplifying d = -2.0743703325

Solution

The solution to the problem is based on the solutions from the subproblems. d = {0.2410369995, -2.0743703325}

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