x^2+17.54x-17.3=0

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Solution for x^2+17.54x-17.3=0 equation:


Simplifying
x2 + 17.54x + -17.3 = 0

Reorder the terms:
-17.3 + 17.54x + x2 = 0

Solving
-17.3 + 17.54x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '17.3' to each side of the equation.
-17.3 + 17.54x + 17.3 + x2 = 0 + 17.3

Reorder the terms:
-17.3 + 17.3 + 17.54x + x2 = 0 + 17.3

Combine like terms: -17.3 + 17.3 = 0.0
0.0 + 17.54x + x2 = 0 + 17.3
17.54x + x2 = 0 + 17.3

Combine like terms: 0 + 17.3 = 17.3
17.54x + x2 = 17.3

The x term is 17.54x.  Take half its coefficient (8.77).
Square it (76.9129) and add it to both sides.

Add '76.9129' to each side of the equation.
17.54x + 76.9129 + x2 = 17.3 + 76.9129

Reorder the terms:
76.9129 + 17.54x + x2 = 17.3 + 76.9129

Combine like terms: 17.3 + 76.9129 = 94.2129
76.9129 + 17.54x + x2 = 94.2129

Factor a perfect square on the left side:
(x + 8.77)(x + 8.77) = 94.2129

Calculate the square root of the right side: 9.706332984

Break this problem into two subproblems by setting 
(x + 8.77) equal to 9.706332984 and -9.706332984.

Subproblem 1

x + 8.77 = 9.706332984 Simplifying x + 8.77 = 9.706332984 Reorder the terms: 8.77 + x = 9.706332984 Solving 8.77 + x = 9.706332984 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.77' to each side of the equation. 8.77 + -8.77 + x = 9.706332984 + -8.77 Combine like terms: 8.77 + -8.77 = 0.00 0.00 + x = 9.706332984 + -8.77 x = 9.706332984 + -8.77 Combine like terms: 9.706332984 + -8.77 = 0.936332984 x = 0.936332984 Simplifying x = 0.936332984

Subproblem 2

x + 8.77 = -9.706332984 Simplifying x + 8.77 = -9.706332984 Reorder the terms: 8.77 + x = -9.706332984 Solving 8.77 + x = -9.706332984 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.77' to each side of the equation. 8.77 + -8.77 + x = -9.706332984 + -8.77 Combine like terms: 8.77 + -8.77 = 0.00 0.00 + x = -9.706332984 + -8.77 x = -9.706332984 + -8.77 Combine like terms: -9.706332984 + -8.77 = -18.476332984 x = -18.476332984 Simplifying x = -18.476332984

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.936332984, -18.476332984}

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