x^2+28x+3=

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Solution for x^2+28x+3= equation:


Simplifying
x2 + 28x + 3 = 0

Reorder the terms:
3 + 28x + x2 = 0

Solving
3 + 28x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + 28x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + 28x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 28x + x2 = 0 + -3
28x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
28x + x2 = -3

The x term is 28x.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28x + 196 + x2 = -3 + 196

Reorder the terms:
196 + 28x + x2 = -3 + 196

Combine like terms: -3 + 196 = 193
196 + 28x + x2 = 193

Factor a perfect square on the left side:
(x + 14)(x + 14) = 193

Calculate the square root of the right side: 13.892443989

Break this problem into two subproblems by setting 
(x + 14) equal to 13.892443989 and -13.892443989.

Subproblem 1

x + 14 = 13.892443989 Simplifying x + 14 = 13.892443989 Reorder the terms: 14 + x = 13.892443989 Solving 14 + x = 13.892443989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 13.892443989 + -14 Combine like terms: 14 + -14 = 0 0 + x = 13.892443989 + -14 x = 13.892443989 + -14 Combine like terms: 13.892443989 + -14 = -0.107556011 x = -0.107556011 Simplifying x = -0.107556011

Subproblem 2

x + 14 = -13.892443989 Simplifying x + 14 = -13.892443989 Reorder the terms: 14 + x = -13.892443989 Solving 14 + x = -13.892443989 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = -13.892443989 + -14 Combine like terms: 14 + -14 = 0 0 + x = -13.892443989 + -14 x = -13.892443989 + -14 Combine like terms: -13.892443989 + -14 = -27.892443989 x = -27.892443989 Simplifying x = -27.892443989

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.107556011, -27.892443989}

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