6x+13=4x^2

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Solution for 6x+13=4x^2 equation:


Simplifying
6x + 13 = 4x2

Reorder the terms:
13 + 6x = 4x2

Solving
13 + 6x = 4x2

Solving for variable 'x'.

Combine like terms: 4x2 + -4x2 = 0
13 + 6x + -4x2 = 0

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

Divide each side by '-4'.
-3.25 + -1.5x + x2 = 0

Move the constant term to the right:

Add '3.25' to each side of the equation.
-3.25 + -1.5x + 3.25 + x2 = 0 + 3.25

Reorder the terms:
-3.25 + 3.25 + -1.5x + x2 = 0 + 3.25

Combine like terms: -3.25 + 3.25 = 0.00
0.00 + -1.5x + x2 = 0 + 3.25
-1.5x + x2 = 0 + 3.25

Combine like terms: 0 + 3.25 = 3.25
-1.5x + x2 = 3.25

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 3.25 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 3.25 + 0.5625

Combine like terms: 3.25 + 0.5625 = 3.8125
0.5625 + -1.5x + x2 = 3.8125

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 3.8125

Calculate the square root of the right side: 1.952562419

Break this problem into two subproblems by setting 
(x + -0.75) equal to 1.952562419 and -1.952562419.

Subproblem 1

x + -0.75 = 1.952562419 Simplifying x + -0.75 = 1.952562419 Reorder the terms: -0.75 + x = 1.952562419 Solving -0.75 + x = 1.952562419 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 1.952562419 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 1.952562419 + 0.75 x = 1.952562419 + 0.75 Combine like terms: 1.952562419 + 0.75 = 2.702562419 x = 2.702562419 Simplifying x = 2.702562419

Subproblem 2

x + -0.75 = -1.952562419 Simplifying x + -0.75 = -1.952562419 Reorder the terms: -0.75 + x = -1.952562419 Solving -0.75 + x = -1.952562419 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -1.952562419 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -1.952562419 + 0.75 x = -1.952562419 + 0.75 Combine like terms: -1.952562419 + 0.75 = -1.202562419 x = -1.202562419 Simplifying x = -1.202562419

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.702562419, -1.202562419}

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