x^2+14x=0.004

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Solution for x^2+14x=0.004 equation:


Simplifying
x2 + 14x = 0.004

Reorder the terms:
14x + x2 = 0.004

Solving
14x + x2 = 0.004

Solving for variable 'x'.

Reorder the terms:
-0.004 + 14x + x2 = 0.004 + -0.004

Combine like terms: 0.004 + -0.004 = 0.000
-0.004 + 14x + x2 = 0.000

Begin completing the square.

Move the constant term to the right:

Add '0.004' to each side of the equation.
-0.004 + 14x + 0.004 + x2 = 0.000 + 0.004

Reorder the terms:
-0.004 + 0.004 + 14x + x2 = 0.000 + 0.004

Combine like terms: -0.004 + 0.004 = 0.000
0.000 + 14x + x2 = 0.000 + 0.004
14x + x2 = 0.000 + 0.004

Combine like terms: 0.000 + 0.004 = 0.004
14x + x2 = 0.004

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 = 0.004 + 49

Reorder the terms:
49 + 14x + x2 = 0.004 + 49

Combine like terms: 0.004 + 49 = 49.004
49 + 14x + x2 = 49.004

Factor a perfect square on the left side:
(x + 7)(x + 7) = 49.004

Calculate the square root of the right side: 7.000285708

Break this problem into two subproblems by setting 
(x + 7) equal to 7.000285708 and -7.000285708.

Subproblem 1

x + 7 = 7.000285708 Simplifying x + 7 = 7.000285708 Reorder the terms: 7 + x = 7.000285708 Solving 7 + x = 7.000285708 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 = 7.000285708 + -7 Combine like terms: 7 + -7 = 0 0 + x = 7.000285708 + -7 x = 7.000285708 + -7 Combine like terms: 7.000285708 + -7 = 0.000285708 x = 0.000285708 Simplifying x = 0.000285708

Subproblem 2

x + 7 = -7.000285708 Simplifying x + 7 = -7.000285708 Reorder the terms: 7 + x = -7.000285708 Solving 7 + x = -7.000285708 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 = -7.000285708 + -7 Combine like terms: 7 + -7 = 0 0 + x = -7.000285708 + -7 x = -7.000285708 + -7 Combine like terms: -7.000285708 + -7 = -14.000285708 x = -14.000285708 Simplifying x = -14.000285708

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.000285708, -14.000285708}

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