1000x^2+45x-3.5=0

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Solution for 1000x^2+45x-3.5=0 equation:


Simplifying
1000x2 + 45x + -3.5 = 0

Reorder the terms:
-3.5 + 45x + 1000x2 = 0

Solving
-3.5 + 45x + 1000x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
1000 the coefficient of the squared term: 

Divide each side by '1000'.
-0.0035 + 0.045x + x2 = 0

Move the constant term to the right:

Add '0.0035' to each side of the equation.
-0.0035 + 0.045x + 0.0035 + x2 = 0 + 0.0035

Reorder the terms:
-0.0035 + 0.0035 + 0.045x + x2 = 0 + 0.0035

Combine like terms: -0.0035 + 0.0035 = 0.0000
0.0000 + 0.045x + x2 = 0 + 0.0035
0.045x + x2 = 0 + 0.0035

Combine like terms: 0 + 0.0035 = 0.0035
0.045x + x2 = 0.0035

The x term is 0.045x.  Take half its coefficient (0.0225).
Square it (0.00050625) and add it to both sides.

Add '0.00050625' to each side of the equation.
0.045x + 0.00050625 + x2 = 0.0035 + 0.00050625

Reorder the terms:
0.00050625 + 0.045x + x2 = 0.0035 + 0.00050625

Combine like terms: 0.0035 + 0.00050625 = 0.00400625
0.00050625 + 0.045x + x2 = 0.00400625

Factor a perfect square on the left side:
(x + 0.0225)(x + 0.0225) = 0.00400625

Calculate the square root of the right side: 0.063294945

Break this problem into two subproblems by setting 
(x + 0.0225) equal to 0.063294945 and -0.063294945.

Subproblem 1

x + 0.0225 = 0.063294945 Simplifying x + 0.0225 = 0.063294945 Reorder the terms: 0.0225 + x = 0.063294945 Solving 0.0225 + x = 0.063294945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0225' to each side of the equation. 0.0225 + -0.0225 + x = 0.063294945 + -0.0225 Combine like terms: 0.0225 + -0.0225 = 0.0000 0.0000 + x = 0.063294945 + -0.0225 x = 0.063294945 + -0.0225 Combine like terms: 0.063294945 + -0.0225 = 0.040794945 x = 0.040794945 Simplifying x = 0.040794945

Subproblem 2

x + 0.0225 = -0.063294945 Simplifying x + 0.0225 = -0.063294945 Reorder the terms: 0.0225 + x = -0.063294945 Solving 0.0225 + x = -0.063294945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0225' to each side of the equation. 0.0225 + -0.0225 + x = -0.063294945 + -0.0225 Combine like terms: 0.0225 + -0.0225 = 0.0000 0.0000 + x = -0.063294945 + -0.0225 x = -0.063294945 + -0.0225 Combine like terms: -0.063294945 + -0.0225 = -0.085794945 x = -0.085794945 Simplifying x = -0.085794945

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.040794945, -0.085794945}

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