2x^2+52x+25=0

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Solution for 2x^2+52x+25=0 equation:


Simplifying
2x2 + 52x + 25 = 0

Reorder the terms:
25 + 52x + 2x2 = 0

Solving
25 + 52x + 2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
12.5 + 26x + x2 = 0

Move the constant term to the right:

Add '-12.5' to each side of the equation.
12.5 + 26x + -12.5 + x2 = 0 + -12.5

Reorder the terms:
12.5 + -12.5 + 26x + x2 = 0 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + 26x + x2 = 0 + -12.5
26x + x2 = 0 + -12.5

Combine like terms: 0 + -12.5 = -12.5
26x + x2 = -12.5

The x term is 26x.  Take half its coefficient (13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
26x + 169 + x2 = -12.5 + 169

Reorder the terms:
169 + 26x + x2 = -12.5 + 169

Combine like terms: -12.5 + 169 = 156.5
169 + 26x + x2 = 156.5

Factor a perfect square on the left side:
(x + 13)(x + 13) = 156.5

Calculate the square root of the right side: 12.509996003

Break this problem into two subproblems by setting 
(x + 13) equal to 12.509996003 and -12.509996003.

Subproblem 1

x + 13 = 12.509996003 Simplifying x + 13 = 12.509996003 Reorder the terms: 13 + x = 12.509996003 Solving 13 + x = 12.509996003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + x = 12.509996003 + -13 Combine like terms: 13 + -13 = 0 0 + x = 12.509996003 + -13 x = 12.509996003 + -13 Combine like terms: 12.509996003 + -13 = -0.490003997 x = -0.490003997 Simplifying x = -0.490003997

Subproblem 2

x + 13 = -12.509996003 Simplifying x + 13 = -12.509996003 Reorder the terms: 13 + x = -12.509996003 Solving 13 + x = -12.509996003 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + x = -12.509996003 + -13 Combine like terms: 13 + -13 = 0 0 + x = -12.509996003 + -13 x = -12.509996003 + -13 Combine like terms: -12.509996003 + -13 = -25.509996003 x = -25.509996003 Simplifying x = -25.509996003

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.490003997, -25.509996003}

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