48+24x+3x^2=8

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Solution for 48+24x+3x^2=8 equation:


Simplifying
48 + 24x + 3x2 = 8

Solving
48 + 24x + 3x2 = 8

Solving for variable 'x'.

Reorder the terms:
48 + -8 + 24x + 3x2 = 8 + -8

Combine like terms: 48 + -8 = 40
40 + 24x + 3x2 = 8 + -8

Combine like terms: 8 + -8 = 0
40 + 24x + 3x2 = 0

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

Divide each side by '3'.
13.33333333 + 8x + x2 = 0

Move the constant term to the right:

Add '-13.33333333' to each side of the equation.
13.33333333 + 8x + -13.33333333 + x2 = 0 + -13.33333333

Reorder the terms:
13.33333333 + -13.33333333 + 8x + x2 = 0 + -13.33333333

Combine like terms: 13.33333333 + -13.33333333 = 0.00000000
0.00000000 + 8x + x2 = 0 + -13.33333333
8x + x2 = 0 + -13.33333333

Combine like terms: 0 + -13.33333333 = -13.33333333
8x + x2 = -13.33333333

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = -13.33333333 + 16

Reorder the terms:
16 + 8x + x2 = -13.33333333 + 16

Combine like terms: -13.33333333 + 16 = 2.66666667
16 + 8x + x2 = 2.66666667

Factor a perfect square on the left side:
(x + 4)(x + 4) = 2.66666667

Calculate the square root of the right side: 1.632993163

Break this problem into two subproblems by setting 
(x + 4) equal to 1.632993163 and -1.632993163.

Subproblem 1

x + 4 = 1.632993163 Simplifying x + 4 = 1.632993163 Reorder the terms: 4 + x = 1.632993163 Solving 4 + x = 1.632993163 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 1.632993163 + -4 Combine like terms: 4 + -4 = 0 0 + x = 1.632993163 + -4 x = 1.632993163 + -4 Combine like terms: 1.632993163 + -4 = -2.367006837 x = -2.367006837 Simplifying x = -2.367006837

Subproblem 2

x + 4 = -1.632993163 Simplifying x + 4 = -1.632993163 Reorder the terms: 4 + x = -1.632993163 Solving 4 + x = -1.632993163 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = -1.632993163 + -4 Combine like terms: 4 + -4 = 0 0 + x = -1.632993163 + -4 x = -1.632993163 + -4 Combine like terms: -1.632993163 + -4 = -5.632993163 x = -5.632993163 Simplifying x = -5.632993163

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.367006837, -5.632993163}

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