88.9d^2+7903d=35600

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Solution for 88.9d^2+7903d=35600 equation:


Simplifying
88.9d2 + 7903d = 35600

Reorder the terms:
7903d + 88.9d2 = 35600

Solving
7903d + 88.9d2 = 35600

Solving for variable 'd'.

Reorder the terms:
-35600 + 7903d + 88.9d2 = 35600 + -35600

Combine like terms: 35600 + -35600 = 0
-35600 + 7903d + 88.9d2 = 0

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

Divide each side by '88.9'.
-400.4499438 + 88.8976378d + d2 = 0

Move the constant term to the right:

Add '400.4499438' to each side of the equation.
-400.4499438 + 88.8976378d + 400.4499438 + d2 = 0 + 400.4499438

Reorder the terms:
-400.4499438 + 400.4499438 + 88.8976378d + d2 = 0 + 400.4499438

Combine like terms: -400.4499438 + 400.4499438 = 0.0000000
0.0000000 + 88.8976378d + d2 = 0 + 400.4499438
88.8976378d + d2 = 0 + 400.4499438

Combine like terms: 0 + 400.4499438 = 400.4499438
88.8976378d + d2 = 400.4499438

The d term is 88.8976378d.  Take half its coefficient (44.4488189).
Square it (1975.697502) and add it to both sides.

Add '1975.697502' to each side of the equation.
88.8976378d + 1975.697502 + d2 = 400.4499438 + 1975.697502

Reorder the terms:
1975.697502 + 88.8976378d + d2 = 400.4499438 + 1975.697502

Combine like terms: 400.4499438 + 1975.697502 = 2376.1474458
1975.697502 + 88.8976378d + d2 = 2376.1474458

Factor a perfect square on the left side:
(d + 44.4488189)(d + 44.4488189) = 2376.1474458

Calculate the square root of the right side: 48.745742848

Break this problem into two subproblems by setting 
(d + 44.4488189) equal to 48.745742848 and -48.745742848.

Subproblem 1

d + 44.4488189 = 48.745742848 Simplifying d + 44.4488189 = 48.745742848 Reorder the terms: 44.4488189 + d = 48.745742848 Solving 44.4488189 + d = 48.745742848 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-44.4488189' to each side of the equation. 44.4488189 + -44.4488189 + d = 48.745742848 + -44.4488189 Combine like terms: 44.4488189 + -44.4488189 = 0.0000000 0.0000000 + d = 48.745742848 + -44.4488189 d = 48.745742848 + -44.4488189 Combine like terms: 48.745742848 + -44.4488189 = 4.296923948 d = 4.296923948 Simplifying d = 4.296923948

Subproblem 2

d + 44.4488189 = -48.745742848 Simplifying d + 44.4488189 = -48.745742848 Reorder the terms: 44.4488189 + d = -48.745742848 Solving 44.4488189 + d = -48.745742848 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '-44.4488189' to each side of the equation. 44.4488189 + -44.4488189 + d = -48.745742848 + -44.4488189 Combine like terms: 44.4488189 + -44.4488189 = 0.0000000 0.0000000 + d = -48.745742848 + -44.4488189 d = -48.745742848 + -44.4488189 Combine like terms: -48.745742848 + -44.4488189 = -93.194561748 d = -93.194561748 Simplifying d = -93.194561748

Solution

The solution to the problem is based on the solutions from the subproblems. d = {4.296923948, -93.194561748}

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