x^2+6x-450=0

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Solution for x^2+6x-450=0 equation:


Simplifying
x2 + 6x + -450 = 0

Reorder the terms:
-450 + 6x + x2 = 0

Solving
-450 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '450' to each side of the equation.
-450 + 6x + 450 + x2 = 0 + 450

Reorder the terms:
-450 + 450 + 6x + x2 = 0 + 450

Combine like terms: -450 + 450 = 0
0 + 6x + x2 = 0 + 450
6x + x2 = 0 + 450

Combine like terms: 0 + 450 = 450
6x + x2 = 450

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 450 + 9

Reorder the terms:
9 + 6x + x2 = 450 + 9

Combine like terms: 450 + 9 = 459
9 + 6x + x2 = 459

Factor a perfect square on the left side:
(x + 3)(x + 3) = 459

Calculate the square root of the right side: 21.424285286

Break this problem into two subproblems by setting 
(x + 3) equal to 21.424285286 and -21.424285286.

Subproblem 1

x + 3 = 21.424285286 Simplifying x + 3 = 21.424285286 Reorder the terms: 3 + x = 21.424285286 Solving 3 + x = 21.424285286 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 21.424285286 + -3 Combine like terms: 3 + -3 = 0 0 + x = 21.424285286 + -3 x = 21.424285286 + -3 Combine like terms: 21.424285286 + -3 = 18.424285286 x = 18.424285286 Simplifying x = 18.424285286

Subproblem 2

x + 3 = -21.424285286 Simplifying x + 3 = -21.424285286 Reorder the terms: 3 + x = -21.424285286 Solving 3 + x = -21.424285286 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -21.424285286 + -3 Combine like terms: 3 + -3 = 0 0 + x = -21.424285286 + -3 x = -21.424285286 + -3 Combine like terms: -21.424285286 + -3 = -24.424285286 x = -24.424285286 Simplifying x = -24.424285286

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.424285286, -24.424285286}

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