0.29x^2+43.5x-4239=0

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Solution for 0.29x^2+43.5x-4239=0 equation:


Simplifying
0.29x2 + 43.5x + -4239 = 0

Reorder the terms:
-4239 + 43.5x + 0.29x2 = 0

Solving
-4239 + 43.5x + 0.29x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.29'.
-14617.24138 + 150x + x2 = 0

Move the constant term to the right:

Add '14617.24138' to each side of the equation.
-14617.24138 + 150x + 14617.24138 + x2 = 0 + 14617.24138

Reorder the terms:
-14617.24138 + 14617.24138 + 150x + x2 = 0 + 14617.24138

Combine like terms: -14617.24138 + 14617.24138 = 0.00000
0.00000 + 150x + x2 = 0 + 14617.24138
150x + x2 = 0 + 14617.24138

Combine like terms: 0 + 14617.24138 = 14617.24138
150x + x2 = 14617.24138

The x term is 150x.  Take half its coefficient (75).
Square it (5625) and add it to both sides.

Add '5625' to each side of the equation.
150x + 5625 + x2 = 14617.24138 + 5625

Reorder the terms:
5625 + 150x + x2 = 14617.24138 + 5625

Combine like terms: 14617.24138 + 5625 = 20242.24138
5625 + 150x + x2 = 20242.24138

Factor a perfect square on the left side:
(x + 75)(x + 75) = 20242.24138

Calculate the square root of the right side: 142.275231084

Break this problem into two subproblems by setting 
(x + 75) equal to 142.275231084 and -142.275231084.

Subproblem 1

x + 75 = 142.275231084 Simplifying x + 75 = 142.275231084 Reorder the terms: 75 + x = 142.275231084 Solving 75 + x = 142.275231084 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-75' to each side of the equation. 75 + -75 + x = 142.275231084 + -75 Combine like terms: 75 + -75 = 0 0 + x = 142.275231084 + -75 x = 142.275231084 + -75 Combine like terms: 142.275231084 + -75 = 67.275231084 x = 67.275231084 Simplifying x = 67.275231084

Subproblem 2

x + 75 = -142.275231084 Simplifying x + 75 = -142.275231084 Reorder the terms: 75 + x = -142.275231084 Solving 75 + x = -142.275231084 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-75' to each side of the equation. 75 + -75 + x = -142.275231084 + -75 Combine like terms: 75 + -75 = 0 0 + x = -142.275231084 + -75 x = -142.275231084 + -75 Combine like terms: -142.275231084 + -75 = -217.275231084 x = -217.275231084 Simplifying x = -217.275231084

Solution

The solution to the problem is based on the solutions from the subproblems. x = {67.275231084, -217.275231084}

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