4x^2+47x+103=0

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Solution for 4x^2+47x+103=0 equation:


Simplifying
4x2 + 47x + 103 = 0

Reorder the terms:
103 + 47x + 4x2 = 0

Solving
103 + 47x + 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'.
25.75 + 11.75x + x2 = 0

Move the constant term to the right:

Add '-25.75' to each side of the equation.
25.75 + 11.75x + -25.75 + x2 = 0 + -25.75

Reorder the terms:
25.75 + -25.75 + 11.75x + x2 = 0 + -25.75

Combine like terms: 25.75 + -25.75 = 0.00
0.00 + 11.75x + x2 = 0 + -25.75
11.75x + x2 = 0 + -25.75

Combine like terms: 0 + -25.75 = -25.75
11.75x + x2 = -25.75

The x term is 11.75x.  Take half its coefficient (5.875).
Square it (34.515625) and add it to both sides.

Add '34.515625' to each side of the equation.
11.75x + 34.515625 + x2 = -25.75 + 34.515625

Reorder the terms:
34.515625 + 11.75x + x2 = -25.75 + 34.515625

Combine like terms: -25.75 + 34.515625 = 8.765625
34.515625 + 11.75x + x2 = 8.765625

Factor a perfect square on the left side:
(x + 5.875)(x + 5.875) = 8.765625

Calculate the square root of the right side: 2.960679821

Break this problem into two subproblems by setting 
(x + 5.875) equal to 2.960679821 and -2.960679821.

Subproblem 1

x + 5.875 = 2.960679821 Simplifying x + 5.875 = 2.960679821 Reorder the terms: 5.875 + x = 2.960679821 Solving 5.875 + x = 2.960679821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.875' to each side of the equation. 5.875 + -5.875 + x = 2.960679821 + -5.875 Combine like terms: 5.875 + -5.875 = 0.000 0.000 + x = 2.960679821 + -5.875 x = 2.960679821 + -5.875 Combine like terms: 2.960679821 + -5.875 = -2.914320179 x = -2.914320179 Simplifying x = -2.914320179

Subproblem 2

x + 5.875 = -2.960679821 Simplifying x + 5.875 = -2.960679821 Reorder the terms: 5.875 + x = -2.960679821 Solving 5.875 + x = -2.960679821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.875' to each side of the equation. 5.875 + -5.875 + x = -2.960679821 + -5.875 Combine like terms: 5.875 + -5.875 = 0.000 0.000 + x = -2.960679821 + -5.875 x = -2.960679821 + -5.875 Combine like terms: -2.960679821 + -5.875 = -8.835679821 x = -8.835679821 Simplifying x = -8.835679821

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-2.914320179, -8.835679821}

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