x^2+73x-2=0

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Solution for x^2+73x-2=0 equation:


Simplifying
x2 + 73x + -2 = 0

Reorder the terms:
-2 + 73x + x2 = 0

Solving
-2 + 73x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 73x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + 73x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 73x + x2 = 0 + 2
73x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
73x + x2 = 2

The x term is 73x.  Take half its coefficient (36.5).
Square it (1332.25) and add it to both sides.

Add '1332.25' to each side of the equation.
73x + 1332.25 + x2 = 2 + 1332.25

Reorder the terms:
1332.25 + 73x + x2 = 2 + 1332.25

Combine like terms: 2 + 1332.25 = 1334.25
1332.25 + 73x + x2 = 1334.25

Factor a perfect square on the left side:
(x + 36.5)(x + 36.5) = 1334.25

Calculate the square root of the right side: 36.527386986

Break this problem into two subproblems by setting 
(x + 36.5) equal to 36.527386986 and -36.527386986.

Subproblem 1

x + 36.5 = 36.527386986 Simplifying x + 36.5 = 36.527386986 Reorder the terms: 36.5 + x = 36.527386986 Solving 36.5 + x = 36.527386986 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-36.5' to each side of the equation. 36.5 + -36.5 + x = 36.527386986 + -36.5 Combine like terms: 36.5 + -36.5 = 0.0 0.0 + x = 36.527386986 + -36.5 x = 36.527386986 + -36.5 Combine like terms: 36.527386986 + -36.5 = 0.027386986 x = 0.027386986 Simplifying x = 0.027386986

Subproblem 2

x + 36.5 = -36.527386986 Simplifying x + 36.5 = -36.527386986 Reorder the terms: 36.5 + x = -36.527386986 Solving 36.5 + x = -36.527386986 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-36.5' to each side of the equation. 36.5 + -36.5 + x = -36.527386986 + -36.5 Combine like terms: 36.5 + -36.5 = 0.0 0.0 + x = -36.527386986 + -36.5 x = -36.527386986 + -36.5 Combine like terms: -36.527386986 + -36.5 = -73.027386986 x = -73.027386986 Simplifying x = -73.027386986

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.027386986, -73.027386986}

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