x(x+14)=270

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Solution for x(x+14)=270 equation:


Simplifying
x(x + 14) = 270

Reorder the terms:
x(14 + x) = 270
(14 * x + x * x) = 270
(14x + x2) = 270

Solving
14x + x2 = 270

Solving for variable 'x'.

Reorder the terms:
-270 + 14x + x2 = 270 + -270

Combine like terms: 270 + -270 = 0
-270 + 14x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '270' to each side of the equation.
-270 + 14x + 270 + x2 = 0 + 270

Reorder the terms:
-270 + 270 + 14x + x2 = 0 + 270

Combine like terms: -270 + 270 = 0
0 + 14x + x2 = 0 + 270
14x + x2 = 0 + 270

Combine like terms: 0 + 270 = 270
14x + x2 = 270

The x term is 14x.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14x + 49 + x2 = 270 + 49

Reorder the terms:
49 + 14x + x2 = 270 + 49

Combine like terms: 270 + 49 = 319
49 + 14x + x2 = 319

Factor a perfect square on the left side:
(x + 7)(x + 7) = 319

Calculate the square root of the right side: 17.860571099

Break this problem into two subproblems by setting 
(x + 7) equal to 17.860571099 and -17.860571099.

Subproblem 1

x + 7 = 17.860571099 Simplifying x + 7 = 17.860571099 Reorder the terms: 7 + x = 17.860571099 Solving 7 + x = 17.860571099 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 17.860571099 + -7 Combine like terms: 7 + -7 = 0 0 + x = 17.860571099 + -7 x = 17.860571099 + -7 Combine like terms: 17.860571099 + -7 = 10.860571099 x = 10.860571099 Simplifying x = 10.860571099

Subproblem 2

x + 7 = -17.860571099 Simplifying x + 7 = -17.860571099 Reorder the terms: 7 + x = -17.860571099 Solving 7 + x = -17.860571099 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = -17.860571099 + -7 Combine like terms: 7 + -7 = 0 0 + x = -17.860571099 + -7 x = -17.860571099 + -7 Combine like terms: -17.860571099 + -7 = -24.860571099 x = -24.860571099 Simplifying x = -24.860571099

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.860571099, -24.860571099}

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