16x^2+75x+3=0

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Solution for 16x^2+75x+3=0 equation:


Simplifying
16x2 + 75x + 3 = 0

Reorder the terms:
3 + 75x + 16x2 = 0

Solving
3 + 75x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
0.1875 + 4.6875x + x2 = 0

Move the constant term to the right:

Add '-0.1875' to each side of the equation.
0.1875 + 4.6875x + -0.1875 + x2 = 0 + -0.1875

Reorder the terms:
0.1875 + -0.1875 + 4.6875x + x2 = 0 + -0.1875

Combine like terms: 0.1875 + -0.1875 = 0.0000
0.0000 + 4.6875x + x2 = 0 + -0.1875
4.6875x + x2 = 0 + -0.1875

Combine like terms: 0 + -0.1875 = -0.1875
4.6875x + x2 = -0.1875

The x term is 4.6875x.  Take half its coefficient (2.34375).
Square it (5.493164063) and add it to both sides.

Add '5.493164063' to each side of the equation.
4.6875x + 5.493164063 + x2 = -0.1875 + 5.493164063

Reorder the terms:
5.493164063 + 4.6875x + x2 = -0.1875 + 5.493164063

Combine like terms: -0.1875 + 5.493164063 = 5.305664063
5.493164063 + 4.6875x + x2 = 5.305664063

Factor a perfect square on the left side:
(x + 2.34375)(x + 2.34375) = 5.305664063

Calculate the square root of the right side: 2.303402714

Break this problem into two subproblems by setting 
(x + 2.34375) equal to 2.303402714 and -2.303402714.

Subproblem 1

x + 2.34375 = 2.303402714 Simplifying x + 2.34375 = 2.303402714 Reorder the terms: 2.34375 + x = 2.303402714 Solving 2.34375 + x = 2.303402714 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.34375' to each side of the equation. 2.34375 + -2.34375 + x = 2.303402714 + -2.34375 Combine like terms: 2.34375 + -2.34375 = 0.00000 0.00000 + x = 2.303402714 + -2.34375 x = 2.303402714 + -2.34375 Combine like terms: 2.303402714 + -2.34375 = -0.040347286 x = -0.040347286 Simplifying x = -0.040347286

Subproblem 2

x + 2.34375 = -2.303402714 Simplifying x + 2.34375 = -2.303402714 Reorder the terms: 2.34375 + x = -2.303402714 Solving 2.34375 + x = -2.303402714 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.34375' to each side of the equation. 2.34375 + -2.34375 + x = -2.303402714 + -2.34375 Combine like terms: 2.34375 + -2.34375 = 0.00000 0.00000 + x = -2.303402714 + -2.34375 x = -2.303402714 + -2.34375 Combine like terms: -2.303402714 + -2.34375 = -4.647152714 x = -4.647152714 Simplifying x = -4.647152714

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.040347286, -4.647152714}

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