x(x+6)=294

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Solution for x(x+6)=294 equation:


Simplifying
x(x + 6) = 294

Reorder the terms:
x(6 + x) = 294
(6 * x + x * x) = 294
(6x + x2) = 294

Solving
6x + x2 = 294

Solving for variable 'x'.

Reorder the terms:
-294 + 6x + x2 = 294 + -294

Combine like terms: 294 + -294 = 0
-294 + 6x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '294' to each side of the equation.
-294 + 6x + 294 + x2 = 0 + 294

Reorder the terms:
-294 + 294 + 6x + x2 = 0 + 294

Combine like terms: -294 + 294 = 0
0 + 6x + x2 = 0 + 294
6x + x2 = 0 + 294

Combine like terms: 0 + 294 = 294
6x + x2 = 294

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 = 294 + 9

Reorder the terms:
9 + 6x + x2 = 294 + 9

Combine like terms: 294 + 9 = 303
9 + 6x + x2 = 303

Factor a perfect square on the left side:
(x + 3)(x + 3) = 303

Calculate the square root of the right side: 17.406895186

Break this problem into two subproblems by setting 
(x + 3) equal to 17.406895186 and -17.406895186.

Subproblem 1

x + 3 = 17.406895186 Simplifying x + 3 = 17.406895186 Reorder the terms: 3 + x = 17.406895186 Solving 3 + x = 17.406895186 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 = 17.406895186 + -3 Combine like terms: 3 + -3 = 0 0 + x = 17.406895186 + -3 x = 17.406895186 + -3 Combine like terms: 17.406895186 + -3 = 14.406895186 x = 14.406895186 Simplifying x = 14.406895186

Subproblem 2

x + 3 = -17.406895186 Simplifying x + 3 = -17.406895186 Reorder the terms: 3 + x = -17.406895186 Solving 3 + x = -17.406895186 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 = -17.406895186 + -3 Combine like terms: 3 + -3 = 0 0 + x = -17.406895186 + -3 x = -17.406895186 + -3 Combine like terms: -17.406895186 + -3 = -20.406895186 x = -20.406895186 Simplifying x = -20.406895186

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.406895186, -20.406895186}

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