x(28+x)=107.59

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Solution for x(28+x)=107.59 equation:


Simplifying
x(28 + x) = 107.59
(28 * x + x * x) = 107.59
(28x + x2) = 107.59

Solving
28x + x2 = 107.59

Solving for variable 'x'.

Reorder the terms:
-107.59 + 28x + x2 = 107.59 + -107.59

Combine like terms: 107.59 + -107.59 = 0.00
-107.59 + 28x + x2 = 0.00

Begin completing the square.

Move the constant term to the right:

Add '107.59' to each side of the equation.
-107.59 + 28x + 107.59 + x2 = 0.00 + 107.59

Reorder the terms:
-107.59 + 107.59 + 28x + x2 = 0.00 + 107.59

Combine like terms: -107.59 + 107.59 = 0.00
0.00 + 28x + x2 = 0.00 + 107.59
28x + x2 = 0.00 + 107.59

Combine like terms: 0.00 + 107.59 = 107.59
28x + x2 = 107.59

The x term is 28x.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28x + 196 + x2 = 107.59 + 196

Reorder the terms:
196 + 28x + x2 = 107.59 + 196

Combine like terms: 107.59 + 196 = 303.59
196 + 28x + x2 = 303.59

Factor a perfect square on the left side:
(x + 14)(x + 14) = 303.59

Calculate the square root of the right side: 17.423834251

Break this problem into two subproblems by setting 
(x + 14) equal to 17.423834251 and -17.423834251.

Subproblem 1

x + 14 = 17.423834251 Simplifying x + 14 = 17.423834251 Reorder the terms: 14 + x = 17.423834251 Solving 14 + x = 17.423834251 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 17.423834251 + -14 Combine like terms: 14 + -14 = 0 0 + x = 17.423834251 + -14 x = 17.423834251 + -14 Combine like terms: 17.423834251 + -14 = 3.423834251 x = 3.423834251 Simplifying x = 3.423834251

Subproblem 2

x + 14 = -17.423834251 Simplifying x + 14 = -17.423834251 Reorder the terms: 14 + x = -17.423834251 Solving 14 + x = -17.423834251 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = -17.423834251 + -14 Combine like terms: 14 + -14 = 0 0 + x = -17.423834251 + -14 x = -17.423834251 + -14 Combine like terms: -17.423834251 + -14 = -31.423834251 x = -31.423834251 Simplifying x = -31.423834251

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.423834251, -31.423834251}

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