4x^2+96x+192=285

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Solution for 4x^2+96x+192=285 equation:


Simplifying
4x2 + 96x + 192 = 285

Reorder the terms:
192 + 96x + 4x2 = 285

Solving
192 + 96x + 4x2 = 285

Solving for variable 'x'.

Reorder the terms:
192 + -285 + 96x + 4x2 = 285 + -285

Combine like terms: 192 + -285 = -93
-93 + 96x + 4x2 = 285 + -285

Combine like terms: 285 + -285 = 0
-93 + 96x + 4x2 = 0

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

Divide each side by '4'.
-23.25 + 24x + x2 = 0

Move the constant term to the right:

Add '23.25' to each side of the equation.
-23.25 + 24x + 23.25 + x2 = 0 + 23.25

Reorder the terms:
-23.25 + 23.25 + 24x + x2 = 0 + 23.25

Combine like terms: -23.25 + 23.25 = 0.00
0.00 + 24x + x2 = 0 + 23.25
24x + x2 = 0 + 23.25

Combine like terms: 0 + 23.25 = 23.25
24x + x2 = 23.25

The x term is 24x.  Take half its coefficient (12).
Square it (144) and add it to both sides.

Add '144' to each side of the equation.
24x + 144 + x2 = 23.25 + 144

Reorder the terms:
144 + 24x + x2 = 23.25 + 144

Combine like terms: 23.25 + 144 = 167.25
144 + 24x + x2 = 167.25

Factor a perfect square on the left side:
(x + 12)(x + 12) = 167.25

Calculate the square root of the right side: 12.932517156

Break this problem into two subproblems by setting 
(x + 12) equal to 12.932517156 and -12.932517156.

Subproblem 1

x + 12 = 12.932517156 Simplifying x + 12 = 12.932517156 Reorder the terms: 12 + x = 12.932517156 Solving 12 + x = 12.932517156 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + x = 12.932517156 + -12 Combine like terms: 12 + -12 = 0 0 + x = 12.932517156 + -12 x = 12.932517156 + -12 Combine like terms: 12.932517156 + -12 = 0.932517156 x = 0.932517156 Simplifying x = 0.932517156

Subproblem 2

x + 12 = -12.932517156 Simplifying x + 12 = -12.932517156 Reorder the terms: 12 + x = -12.932517156 Solving 12 + x = -12.932517156 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + x = -12.932517156 + -12 Combine like terms: 12 + -12 = 0 0 + x = -12.932517156 + -12 x = -12.932517156 + -12 Combine like terms: -12.932517156 + -12 = -24.932517156 x = -24.932517156 Simplifying x = -24.932517156

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.932517156, -24.932517156}

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