25x^2+36x+3=0

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Solution for 25x^2+36x+3=0 equation:


Simplifying
25x2 + 36x + 3 = 0

Reorder the terms:
3 + 36x + 25x2 = 0

Solving
3 + 36x + 25x2 = 0

Solving for variable 'x'.

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

Divide each side by '25'.
0.12 + 1.44x + x2 = 0

Move the constant term to the right:

Add '-0.12' to each side of the equation.
0.12 + 1.44x + -0.12 + x2 = 0 + -0.12

Reorder the terms:
0.12 + -0.12 + 1.44x + x2 = 0 + -0.12

Combine like terms: 0.12 + -0.12 = 0.00
0.00 + 1.44x + x2 = 0 + -0.12
1.44x + x2 = 0 + -0.12

Combine like terms: 0 + -0.12 = -0.12
1.44x + x2 = -0.12

The x term is 1.44x.  Take half its coefficient (0.72).
Square it (0.5184) and add it to both sides.

Add '0.5184' to each side of the equation.
1.44x + 0.5184 + x2 = -0.12 + 0.5184

Reorder the terms:
0.5184 + 1.44x + x2 = -0.12 + 0.5184

Combine like terms: -0.12 + 0.5184 = 0.3984
0.5184 + 1.44x + x2 = 0.3984

Factor a perfect square on the left side:
(x + 0.72)(x + 0.72) = 0.3984

Calculate the square root of the right side: 0.631189354

Break this problem into two subproblems by setting 
(x + 0.72) equal to 0.631189354 and -0.631189354.

Subproblem 1

x + 0.72 = 0.631189354 Simplifying x + 0.72 = 0.631189354 Reorder the terms: 0.72 + x = 0.631189354 Solving 0.72 + x = 0.631189354 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.72' to each side of the equation. 0.72 + -0.72 + x = 0.631189354 + -0.72 Combine like terms: 0.72 + -0.72 = 0.00 0.00 + x = 0.631189354 + -0.72 x = 0.631189354 + -0.72 Combine like terms: 0.631189354 + -0.72 = -0.088810646 x = -0.088810646 Simplifying x = -0.088810646

Subproblem 2

x + 0.72 = -0.631189354 Simplifying x + 0.72 = -0.631189354 Reorder the terms: 0.72 + x = -0.631189354 Solving 0.72 + x = -0.631189354 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.72' to each side of the equation. 0.72 + -0.72 + x = -0.631189354 + -0.72 Combine like terms: 0.72 + -0.72 = 0.00 0.00 + x = -0.631189354 + -0.72 x = -0.631189354 + -0.72 Combine like terms: -0.631189354 + -0.72 = -1.351189354 x = -1.351189354 Simplifying x = -1.351189354

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.088810646, -1.351189354}

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