34x^2+42x-441=0

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Solution for 34x^2+42x-441=0 equation:


Simplifying
34x2 + 42x + -441 = 0

Reorder the terms:
-441 + 42x + 34x2 = 0

Solving
-441 + 42x + 34x2 = 0

Solving for variable 'x'.

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

Divide each side by '34'.
-12.97058824 + 1.235294118x + x2 = 0

Move the constant term to the right:

Add '12.97058824' to each side of the equation.
-12.97058824 + 1.235294118x + 12.97058824 + x2 = 0 + 12.97058824

Reorder the terms:
-12.97058824 + 12.97058824 + 1.235294118x + x2 = 0 + 12.97058824

Combine like terms: -12.97058824 + 12.97058824 = 0.00000000
0.00000000 + 1.235294118x + x2 = 0 + 12.97058824
1.235294118x + x2 = 0 + 12.97058824

Combine like terms: 0 + 12.97058824 = 12.97058824
1.235294118x + x2 = 12.97058824

The x term is 1.235294118x.  Take half its coefficient (0.617647059).
Square it (0.3814878895) and add it to both sides.

Add '0.3814878895' to each side of the equation.
1.235294118x + 0.3814878895 + x2 = 12.97058824 + 0.3814878895

Reorder the terms:
0.3814878895 + 1.235294118x + x2 = 12.97058824 + 0.3814878895

Combine like terms: 12.97058824 + 0.3814878895 = 13.3520761295
0.3814878895 + 1.235294118x + x2 = 13.3520761295

Factor a perfect square on the left side:
(x + 0.617647059)(x + 0.617647059) = 13.3520761295

Calculate the square root of the right side: 3.654049278

Break this problem into two subproblems by setting 
(x + 0.617647059) equal to 3.654049278 and -3.654049278.

Subproblem 1

x + 0.617647059 = 3.654049278 Simplifying x + 0.617647059 = 3.654049278 Reorder the terms: 0.617647059 + x = 3.654049278 Solving 0.617647059 + x = 3.654049278 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.617647059' to each side of the equation. 0.617647059 + -0.617647059 + x = 3.654049278 + -0.617647059 Combine like terms: 0.617647059 + -0.617647059 = 0.000000000 0.000000000 + x = 3.654049278 + -0.617647059 x = 3.654049278 + -0.617647059 Combine like terms: 3.654049278 + -0.617647059 = 3.036402219 x = 3.036402219 Simplifying x = 3.036402219

Subproblem 2

x + 0.617647059 = -3.654049278 Simplifying x + 0.617647059 = -3.654049278 Reorder the terms: 0.617647059 + x = -3.654049278 Solving 0.617647059 + x = -3.654049278 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.617647059' to each side of the equation. 0.617647059 + -0.617647059 + x = -3.654049278 + -0.617647059 Combine like terms: 0.617647059 + -0.617647059 = 0.000000000 0.000000000 + x = -3.654049278 + -0.617647059 x = -3.654049278 + -0.617647059 Combine like terms: -3.654049278 + -0.617647059 = -4.271696337 x = -4.271696337 Simplifying x = -4.271696337

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.036402219, -4.271696337}

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