d^2+4d-29=0

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Solution for d^2+4d-29=0 equation:


Simplifying
d2 + 4d + -29 = 0

Reorder the terms:
-29 + 4d + d2 = 0

Solving
-29 + 4d + d2 = 0

Solving for variable 'd'.

Begin completing the square.

Move the constant term to the right:

Add '29' to each side of the equation.
-29 + 4d + 29 + d2 = 0 + 29

Reorder the terms:
-29 + 29 + 4d + d2 = 0 + 29

Combine like terms: -29 + 29 = 0
0 + 4d + d2 = 0 + 29
4d + d2 = 0 + 29

Combine like terms: 0 + 29 = 29
4d + d2 = 29

The d term is 4d.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4d + 4 + d2 = 29 + 4

Reorder the terms:
4 + 4d + d2 = 29 + 4

Combine like terms: 29 + 4 = 33
4 + 4d + d2 = 33

Factor a perfect square on the left side:
(d + 2)(d + 2) = 33

Calculate the square root of the right side: 5.744562647

Break this problem into two subproblems by setting 
(d + 2) equal to 5.744562647 and -5.744562647.

Subproblem 1

d + 2 = 5.744562647 Simplifying d + 2 = 5.744562647 Reorder the terms: 2 + d = 5.744562647 Solving 2 + d = 5.744562647 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + d = 5.744562647 + -2 Combine like terms: 2 + -2 = 0 0 + d = 5.744562647 + -2 d = 5.744562647 + -2 Combine like terms: 5.744562647 + -2 = 3.744562647 d = 3.744562647 Simplifying d = 3.744562647

Subproblem 2

d + 2 = -5.744562647 Simplifying d + 2 = -5.744562647 Reorder the terms: 2 + d = -5.744562647 Solving 2 + d = -5.744562647 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + d = -5.744562647 + -2 Combine like terms: 2 + -2 = 0 0 + d = -5.744562647 + -2 d = -5.744562647 + -2 Combine like terms: -5.744562647 + -2 = -7.744562647 d = -7.744562647 Simplifying d = -7.744562647

Solution

The solution to the problem is based on the solutions from the subproblems. d = {3.744562647, -7.744562647}

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