x^2+10x-73=0

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Solution for x^2+10x-73=0 equation:


Simplifying
x2 + 10x + -73 = 0

Reorder the terms:
-73 + 10x + x2 = 0

Solving
-73 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '73' to each side of the equation.
-73 + 10x + 73 + x2 = 0 + 73

Reorder the terms:
-73 + 73 + 10x + x2 = 0 + 73

Combine like terms: -73 + 73 = 0
0 + 10x + x2 = 0 + 73
10x + x2 = 0 + 73

Combine like terms: 0 + 73 = 73
10x + x2 = 73

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = 73 + 25

Reorder the terms:
25 + 10x + x2 = 73 + 25

Combine like terms: 73 + 25 = 98
25 + 10x + x2 = 98

Factor a perfect square on the left side:
(x + 5)(x + 5) = 98

Calculate the square root of the right side: 9.899494937

Break this problem into two subproblems by setting 
(x + 5) equal to 9.899494937 and -9.899494937.

Subproblem 1

x + 5 = 9.899494937 Simplifying x + 5 = 9.899494937 Reorder the terms: 5 + x = 9.899494937 Solving 5 + x = 9.899494937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 9.899494937 + -5 Combine like terms: 5 + -5 = 0 0 + x = 9.899494937 + -5 x = 9.899494937 + -5 Combine like terms: 9.899494937 + -5 = 4.899494937 x = 4.899494937 Simplifying x = 4.899494937

Subproblem 2

x + 5 = -9.899494937 Simplifying x + 5 = -9.899494937 Reorder the terms: 5 + x = -9.899494937 Solving 5 + x = -9.899494937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -9.899494937 + -5 Combine like terms: 5 + -5 = 0 0 + x = -9.899494937 + -5 x = -9.899494937 + -5 Combine like terms: -9.899494937 + -5 = -14.899494937 x = -14.899494937 Simplifying x = -14.899494937

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.899494937, -14.899494937}

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