4x^2+26x-3219=0

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Solution for 4x^2+26x-3219=0 equation:


Simplifying
4x2 + 26x + -3219 = 0

Reorder the terms:
-3219 + 26x + 4x2 = 0

Solving
-3219 + 26x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-804.75 + 6.5x + x2 = 0

Move the constant term to the right:

Add '804.75' to each side of the equation.
-804.75 + 6.5x + 804.75 + x2 = 0 + 804.75

Reorder the terms:
-804.75 + 804.75 + 6.5x + x2 = 0 + 804.75

Combine like terms: -804.75 + 804.75 = 0.00
0.00 + 6.5x + x2 = 0 + 804.75
6.5x + x2 = 0 + 804.75

Combine like terms: 0 + 804.75 = 804.75
6.5x + x2 = 804.75

The x term is 6.5x.  Take half its coefficient (3.25).
Square it (10.5625) and add it to both sides.

Add '10.5625' to each side of the equation.
6.5x + 10.5625 + x2 = 804.75 + 10.5625

Reorder the terms:
10.5625 + 6.5x + x2 = 804.75 + 10.5625

Combine like terms: 804.75 + 10.5625 = 815.3125
10.5625 + 6.5x + x2 = 815.3125

Factor a perfect square on the left side:
(x + 3.25)(x + 3.25) = 815.3125

Calculate the square root of the right side: 28.553677521

Break this problem into two subproblems by setting 
(x + 3.25) equal to 28.553677521 and -28.553677521.

Subproblem 1

x + 3.25 = 28.553677521 Simplifying x + 3.25 = 28.553677521 Reorder the terms: 3.25 + x = 28.553677521 Solving 3.25 + x = 28.553677521 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.25' to each side of the equation. 3.25 + -3.25 + x = 28.553677521 + -3.25 Combine like terms: 3.25 + -3.25 = 0.00 0.00 + x = 28.553677521 + -3.25 x = 28.553677521 + -3.25 Combine like terms: 28.553677521 + -3.25 = 25.303677521 x = 25.303677521 Simplifying x = 25.303677521

Subproblem 2

x + 3.25 = -28.553677521 Simplifying x + 3.25 = -28.553677521 Reorder the terms: 3.25 + x = -28.553677521 Solving 3.25 + x = -28.553677521 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.25' to each side of the equation. 3.25 + -3.25 + x = -28.553677521 + -3.25 Combine like terms: 3.25 + -3.25 = 0.00 0.00 + x = -28.553677521 + -3.25 x = -28.553677521 + -3.25 Combine like terms: -28.553677521 + -3.25 = -31.803677521 x = -31.803677521 Simplifying x = -31.803677521

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.303677521, -31.803677521}

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