x^2+28x+48=0

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Solution for x^2+28x+48=0 equation:


Simplifying
x2 + 28x + 48 = 0

Reorder the terms:
48 + 28x + x2 = 0

Solving
48 + 28x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-48' to each side of the equation.
48 + 28x + -48 + x2 = 0 + -48

Reorder the terms:
48 + -48 + 28x + x2 = 0 + -48

Combine like terms: 48 + -48 = 0
0 + 28x + x2 = 0 + -48
28x + x2 = 0 + -48

Combine like terms: 0 + -48 = -48
28x + x2 = -48

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 = -48 + 196

Reorder the terms:
196 + 28x + x2 = -48 + 196

Combine like terms: -48 + 196 = 148
196 + 28x + x2 = 148

Factor a perfect square on the left side:
(x + 14)(x + 14) = 148

Calculate the square root of the right side: 12.165525061

Break this problem into two subproblems by setting 
(x + 14) equal to 12.165525061 and -12.165525061.

Subproblem 1

x + 14 = 12.165525061 Simplifying x + 14 = 12.165525061 Reorder the terms: 14 + x = 12.165525061 Solving 14 + x = 12.165525061 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 = 12.165525061 + -14 Combine like terms: 14 + -14 = 0 0 + x = 12.165525061 + -14 x = 12.165525061 + -14 Combine like terms: 12.165525061 + -14 = -1.834474939 x = -1.834474939 Simplifying x = -1.834474939

Subproblem 2

x + 14 = -12.165525061 Simplifying x + 14 = -12.165525061 Reorder the terms: 14 + x = -12.165525061 Solving 14 + x = -12.165525061 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 = -12.165525061 + -14 Combine like terms: 14 + -14 = 0 0 + x = -12.165525061 + -14 x = -12.165525061 + -14 Combine like terms: -12.165525061 + -14 = -26.165525061 x = -26.165525061 Simplifying x = -26.165525061

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.834474939, -26.165525061}

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