0=3.25x^2-2.25x-25.437

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Solution for 0=3.25x^2-2.25x-25.437 equation:


Simplifying
0 = 3.25x2 + -2.25x + -25.437

Reorder the terms:
0 = -25.437 + -2.25x + 3.25x2

Solving
0 = -25.437 + -2.25x + 3.25x2

Solving for variable 'x'.

Combine like terms: 0 + 25.437 = 25.437
25.437 + 2.25x + -3.25x2 = -25.437 + -2.25x + 3.25x2 + 25.437 + 2.25x + -3.25x2

Reorder the terms:
25.437 + 2.25x + -3.25x2 = -25.437 + 25.437 + -2.25x + 2.25x + 3.25x2 + -3.25x2

Combine like terms: -25.437 + 25.437 = 0.000
25.437 + 2.25x + -3.25x2 = 0.000 + -2.25x + 2.25x + 3.25x2 + -3.25x2
25.437 + 2.25x + -3.25x2 = -2.25x + 2.25x + 3.25x2 + -3.25x2

Combine like terms: -2.25x + 2.25x = 0.00
25.437 + 2.25x + -3.25x2 = 0.00 + 3.25x2 + -3.25x2
25.437 + 2.25x + -3.25x2 = 3.25x2 + -3.25x2

Combine like terms: 3.25x2 + -3.25x2 = 0.00
25.437 + 2.25x + -3.25x2 = 0.00

Begin completing the square.  Divide all terms by
-3.25 the coefficient of the squared term: 

Divide each side by '-3.25'.
-7.826769231 + -0.6923076923x + x2 = 0

Move the constant term to the right:

Add '7.826769231' to each side of the equation.
-7.826769231 + -0.6923076923x + 7.826769231 + x2 = 0 + 7.826769231

Reorder the terms:
-7.826769231 + 7.826769231 + -0.6923076923x + x2 = 0 + 7.826769231

Combine like terms: -7.826769231 + 7.826769231 = 0.000000000
0.000000000 + -0.6923076923x + x2 = 0 + 7.826769231
-0.6923076923x + x2 = 0 + 7.826769231

Combine like terms: 0 + 7.826769231 = 7.826769231
-0.6923076923x + x2 = 7.826769231

The x term is -0.6923076923x.  Take half its coefficient (-0.3461538462).
Square it (0.1198224852) and add it to both sides.

Add '0.1198224852' to each side of the equation.
-0.6923076923x + 0.1198224852 + x2 = 7.826769231 + 0.1198224852

Reorder the terms:
0.1198224852 + -0.6923076923x + x2 = 7.826769231 + 0.1198224852

Combine like terms: 7.826769231 + 0.1198224852 = 7.9465917162
0.1198224852 + -0.6923076923x + x2 = 7.9465917162

Factor a perfect square on the left side:
(x + -0.3461538462)(x + -0.3461538462) = 7.9465917162

Calculate the square root of the right side: 2.818969974

Break this problem into two subproblems by setting 
(x + -0.3461538462) equal to 2.818969974 and -2.818969974.

Subproblem 1

x + -0.3461538462 = 2.818969974 Simplifying x + -0.3461538462 = 2.818969974 Reorder the terms: -0.3461538462 + x = 2.818969974 Solving -0.3461538462 + x = 2.818969974 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3461538462' to each side of the equation. -0.3461538462 + 0.3461538462 + x = 2.818969974 + 0.3461538462 Combine like terms: -0.3461538462 + 0.3461538462 = 0.0000000000 0.0000000000 + x = 2.818969974 + 0.3461538462 x = 2.818969974 + 0.3461538462 Combine like terms: 2.818969974 + 0.3461538462 = 3.1651238202 x = 3.1651238202 Simplifying x = 3.1651238202

Subproblem 2

x + -0.3461538462 = -2.818969974 Simplifying x + -0.3461538462 = -2.818969974 Reorder the terms: -0.3461538462 + x = -2.818969974 Solving -0.3461538462 + x = -2.818969974 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3461538462' to each side of the equation. -0.3461538462 + 0.3461538462 + x = -2.818969974 + 0.3461538462 Combine like terms: -0.3461538462 + 0.3461538462 = 0.0000000000 0.0000000000 + x = -2.818969974 + 0.3461538462 x = -2.818969974 + 0.3461538462 Combine like terms: -2.818969974 + 0.3461538462 = -2.4728161278 x = -2.4728161278 Simplifying x = -2.4728161278

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.1651238202, -2.4728161278}

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