91000=3701x^2+5591x+5582

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Solution for 91000=3701x^2+5591x+5582 equation:


Simplifying
91000 = 3701x2 + 5591x + 5582

Reorder the terms:
91000 = 5582 + 5591x + 3701x2

Solving
91000 = 5582 + 5591x + 3701x2

Solving for variable 'x'.

Combine like terms: 91000 + -5582 = 85418
85418 + -5591x + -3701x2 = 5582 + 5591x + 3701x2 + -5582 + -5591x + -3701x2

Reorder the terms:
85418 + -5591x + -3701x2 = 5582 + -5582 + 5591x + -5591x + 3701x2 + -3701x2

Combine like terms: 5582 + -5582 = 0
85418 + -5591x + -3701x2 = 0 + 5591x + -5591x + 3701x2 + -3701x2
85418 + -5591x + -3701x2 = 5591x + -5591x + 3701x2 + -3701x2

Combine like terms: 5591x + -5591x = 0
85418 + -5591x + -3701x2 = 0 + 3701x2 + -3701x2
85418 + -5591x + -3701x2 = 3701x2 + -3701x2

Combine like terms: 3701x2 + -3701x2 = 0
85418 + -5591x + -3701x2 = 0

Begin completing the square.  Divide all terms by
-3701 the coefficient of the squared term: 

Divide each side by '-3701'.
-23.07970819 + 1.510672791x + x2 = 0

Move the constant term to the right:

Add '23.07970819' to each side of the equation.
-23.07970819 + 1.510672791x + 23.07970819 + x2 = 0 + 23.07970819

Reorder the terms:
-23.07970819 + 23.07970819 + 1.510672791x + x2 = 0 + 23.07970819

Combine like terms: -23.07970819 + 23.07970819 = 0.00000000
0.00000000 + 1.510672791x + x2 = 0 + 23.07970819
1.510672791x + x2 = 0 + 23.07970819

Combine like terms: 0 + 23.07970819 = 23.07970819
1.510672791x + x2 = 23.07970819

The x term is 1.510672791x.  Take half its coefficient (0.7553363955).
Square it (0.5705330704) and add it to both sides.

Add '0.5705330704' to each side of the equation.
1.510672791x + 0.5705330704 + x2 = 23.07970819 + 0.5705330704

Reorder the terms:
0.5705330704 + 1.510672791x + x2 = 23.07970819 + 0.5705330704

Combine like terms: 23.07970819 + 0.5705330704 = 23.6502412604
0.5705330704 + 1.510672791x + x2 = 23.6502412604

Factor a perfect square on the left side:
(x + 0.7553363955)(x + 0.7553363955) = 23.6502412604

Calculate the square root of the right side: 4.863151371

Break this problem into two subproblems by setting 
(x + 0.7553363955) equal to 4.863151371 and -4.863151371.

Subproblem 1

x + 0.7553363955 = 4.863151371 Simplifying x + 0.7553363955 = 4.863151371 Reorder the terms: 0.7553363955 + x = 4.863151371 Solving 0.7553363955 + x = 4.863151371 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7553363955' to each side of the equation. 0.7553363955 + -0.7553363955 + x = 4.863151371 + -0.7553363955 Combine like terms: 0.7553363955 + -0.7553363955 = 0.0000000000 0.0000000000 + x = 4.863151371 + -0.7553363955 x = 4.863151371 + -0.7553363955 Combine like terms: 4.863151371 + -0.7553363955 = 4.1078149755 x = 4.1078149755 Simplifying x = 4.1078149755

Subproblem 2

x + 0.7553363955 = -4.863151371 Simplifying x + 0.7553363955 = -4.863151371 Reorder the terms: 0.7553363955 + x = -4.863151371 Solving 0.7553363955 + x = -4.863151371 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7553363955' to each side of the equation. 0.7553363955 + -0.7553363955 + x = -4.863151371 + -0.7553363955 Combine like terms: 0.7553363955 + -0.7553363955 = 0.0000000000 0.0000000000 + x = -4.863151371 + -0.7553363955 x = -4.863151371 + -0.7553363955 Combine like terms: -4.863151371 + -0.7553363955 = -5.6184877665 x = -5.6184877665 Simplifying x = -5.6184877665

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.1078149755, -5.6184877665}

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