4x^2+6x-3=46

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Solution for 4x^2+6x-3=46 equation:


Simplifying
4x2 + 6x + -3 = 46

Reorder the terms:
-3 + 6x + 4x2 = 46

Solving
-3 + 6x + 4x2 = 46

Solving for variable 'x'.

Reorder the terms:
-3 + -46 + 6x + 4x2 = 46 + -46

Combine like terms: -3 + -46 = -49
-49 + 6x + 4x2 = 46 + -46

Combine like terms: 46 + -46 = 0
-49 + 6x + 4x2 = 0

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

Divide each side by '4'.
-12.25 + 1.5x + x2 = 0

Move the constant term to the right:

Add '12.25' to each side of the equation.
-12.25 + 1.5x + 12.25 + x2 = 0 + 12.25

Reorder the terms:
-12.25 + 12.25 + 1.5x + x2 = 0 + 12.25

Combine like terms: -12.25 + 12.25 = 0.00
0.00 + 1.5x + x2 = 0 + 12.25
1.5x + x2 = 0 + 12.25

Combine like terms: 0 + 12.25 = 12.25
1.5x + x2 = 12.25

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 = 12.25 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 12.25 + 0.5625

Combine like terms: 12.25 + 0.5625 = 12.8125
0.5625 + 1.5x + x2 = 12.8125

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 12.8125

Calculate the square root of the right side: 3.579455266

Break this problem into two subproblems by setting 
(x + 0.75) equal to 3.579455266 and -3.579455266.

Subproblem 1

x + 0.75 = 3.579455266 Simplifying x + 0.75 = 3.579455266 Reorder the terms: 0.75 + x = 3.579455266 Solving 0.75 + x = 3.579455266 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 = 3.579455266 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 3.579455266 + -0.75 x = 3.579455266 + -0.75 Combine like terms: 3.579455266 + -0.75 = 2.829455266 x = 2.829455266 Simplifying x = 2.829455266

Subproblem 2

x + 0.75 = -3.579455266 Simplifying x + 0.75 = -3.579455266 Reorder the terms: 0.75 + x = -3.579455266 Solving 0.75 + x = -3.579455266 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 = -3.579455266 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -3.579455266 + -0.75 x = -3.579455266 + -0.75 Combine like terms: -3.579455266 + -0.75 = -4.329455266 x = -4.329455266 Simplifying x = -4.329455266

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.829455266, -4.329455266}

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