12x^2+12x-25=0

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Solution for 12x^2+12x-25=0 equation:


Simplifying
12x2 + 12x + -25 = 0

Reorder the terms:
-25 + 12x + 12x2 = 0

Solving
-25 + 12x + 12x2 = 0

Solving for variable 'x'.

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

Divide each side by '12'.
-2.083333333 + x + x2 = 0

Move the constant term to the right:

Add '2.083333333' to each side of the equation.
-2.083333333 + x + 2.083333333 + x2 = 0 + 2.083333333

Reorder the terms:
-2.083333333 + 2.083333333 + x + x2 = 0 + 2.083333333

Combine like terms: -2.083333333 + 2.083333333 = 0.000000000
0.000000000 + x + x2 = 0 + 2.083333333
x + x2 = 0 + 2.083333333

Combine like terms: 0 + 2.083333333 = 2.083333333
x + x2 = 2.083333333

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 2.083333333 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 2.083333333 + 0.25

Combine like terms: 2.083333333 + 0.25 = 2.333333333
1.25 + x2 = 2.333333333

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 2.333333333

Calculate the square root of the right side: 1.527525232

Break this problem into two subproblems by setting 
(x + 0.5) equal to 1.527525232 and -1.527525232.

Subproblem 1

x + 0.5 = 1.527525232 Simplifying x + 0.5 = 1.527525232 Reorder the terms: 0.5 + x = 1.527525232 Solving 0.5 + x = 1.527525232 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.527525232 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.527525232 + -0.5 x = 1.527525232 + -0.5 Combine like terms: 1.527525232 + -0.5 = 1.027525232 x = 1.027525232 Simplifying x = 1.027525232

Subproblem 2

x + 0.5 = -1.527525232 Simplifying x + 0.5 = -1.527525232 Reorder the terms: 0.5 + x = -1.527525232 Solving 0.5 + x = -1.527525232 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.527525232 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.527525232 + -0.5 x = -1.527525232 + -0.5 Combine like terms: -1.527525232 + -0.5 = -2.027525232 x = -2.027525232 Simplifying x = -2.027525232

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.027525232, -2.027525232}

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