d^2+26d=37

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Solution for d^2+26d=37 equation:


Simplifying
d2 + 26d = 37

Reorder the terms:
26d + d2 = 37

Solving
26d + d2 = 37

Solving for variable 'd'.

Reorder the terms:
-37 + 26d + d2 = 37 + -37

Combine like terms: 37 + -37 = 0
-37 + 26d + d2 = 0

Begin completing the square.

Move the constant term to the right:

Add '37' to each side of the equation.
-37 + 26d + 37 + d2 = 0 + 37

Reorder the terms:
-37 + 37 + 26d + d2 = 0 + 37

Combine like terms: -37 + 37 = 0
0 + 26d + d2 = 0 + 37
26d + d2 = 0 + 37

Combine like terms: 0 + 37 = 37
26d + d2 = 37

The d term is 26d.  Take half its coefficient (13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
26d + 169 + d2 = 37 + 169

Reorder the terms:
169 + 26d + d2 = 37 + 169

Combine like terms: 37 + 169 = 206
169 + 26d + d2 = 206

Factor a perfect square on the left side:
(d + 13)(d + 13) = 206

Calculate the square root of the right side: 14.352700094

Break this problem into two subproblems by setting 
(d + 13) equal to 14.352700094 and -14.352700094.

Subproblem 1

d + 13 = 14.352700094 Simplifying d + 13 = 14.352700094 Reorder the terms: 13 + d = 14.352700094 Solving 13 + d = 14.352700094 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + d = 14.352700094 + -13 Combine like terms: 13 + -13 = 0 0 + d = 14.352700094 + -13 d = 14.352700094 + -13 Combine like terms: 14.352700094 + -13 = 1.352700094 d = 1.352700094 Simplifying d = 1.352700094

Subproblem 2

d + 13 = -14.352700094 Simplifying d + 13 = -14.352700094 Reorder the terms: 13 + d = -14.352700094 Solving 13 + d = -14.352700094 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + d = -14.352700094 + -13 Combine like terms: 13 + -13 = 0 0 + d = -14.352700094 + -13 d = -14.352700094 + -13 Combine like terms: -14.352700094 + -13 = -27.352700094 d = -27.352700094 Simplifying d = -27.352700094

Solution

The solution to the problem is based on the solutions from the subproblems. d = {1.352700094, -27.352700094}

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