4x^2+284x+57=0

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Solution for 4x^2+284x+57=0 equation:


Simplifying
4x2 + 284x + 57 = 0

Reorder the terms:
57 + 284x + 4x2 = 0

Solving
57 + 284x + 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'.
14.25 + 71x + x2 = 0

Move the constant term to the right:

Add '-14.25' to each side of the equation.
14.25 + 71x + -14.25 + x2 = 0 + -14.25

Reorder the terms:
14.25 + -14.25 + 71x + x2 = 0 + -14.25

Combine like terms: 14.25 + -14.25 = 0.00
0.00 + 71x + x2 = 0 + -14.25
71x + x2 = 0 + -14.25

Combine like terms: 0 + -14.25 = -14.25
71x + x2 = -14.25

The x term is 71x.  Take half its coefficient (35.5).
Square it (1260.25) and add it to both sides.

Add '1260.25' to each side of the equation.
71x + 1260.25 + x2 = -14.25 + 1260.25

Reorder the terms:
1260.25 + 71x + x2 = -14.25 + 1260.25

Combine like terms: -14.25 + 1260.25 = 1246
1260.25 + 71x + x2 = 1246

Factor a perfect square on the left side:
(x + 35.5)(x + 35.5) = 1246

Calculate the square root of the right side: 35.298725189

Break this problem into two subproblems by setting 
(x + 35.5) equal to 35.298725189 and -35.298725189.

Subproblem 1

x + 35.5 = 35.298725189 Simplifying x + 35.5 = 35.298725189 Reorder the terms: 35.5 + x = 35.298725189 Solving 35.5 + x = 35.298725189 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-35.5' to each side of the equation. 35.5 + -35.5 + x = 35.298725189 + -35.5 Combine like terms: 35.5 + -35.5 = 0.0 0.0 + x = 35.298725189 + -35.5 x = 35.298725189 + -35.5 Combine like terms: 35.298725189 + -35.5 = -0.201274811 x = -0.201274811 Simplifying x = -0.201274811

Subproblem 2

x + 35.5 = -35.298725189 Simplifying x + 35.5 = -35.298725189 Reorder the terms: 35.5 + x = -35.298725189 Solving 35.5 + x = -35.298725189 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-35.5' to each side of the equation. 35.5 + -35.5 + x = -35.298725189 + -35.5 Combine like terms: 35.5 + -35.5 = 0.0 0.0 + x = -35.298725189 + -35.5 x = -35.298725189 + -35.5 Combine like terms: -35.298725189 + -35.5 = -70.798725189 x = -70.798725189 Simplifying x = -70.798725189

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.201274811, -70.798725189}

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