34y^2+46y-39=0

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Solution for 34y^2+46y-39=0 equation:


Simplifying
34y2 + 46y + -39 = 0

Reorder the terms:
-39 + 46y + 34y2 = 0

Solving
-39 + 46y + 34y2 = 0

Solving for variable 'y'.

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

Divide each side by '34'.
-1.147058824 + 1.352941176y + y2 = 0

Move the constant term to the right:

Add '1.147058824' to each side of the equation.
-1.147058824 + 1.352941176y + 1.147058824 + y2 = 0 + 1.147058824

Reorder the terms:
-1.147058824 + 1.147058824 + 1.352941176y + y2 = 0 + 1.147058824

Combine like terms: -1.147058824 + 1.147058824 = 0.000000000
0.000000000 + 1.352941176y + y2 = 0 + 1.147058824
1.352941176y + y2 = 0 + 1.147058824

Combine like terms: 0 + 1.147058824 = 1.147058824
1.352941176y + y2 = 1.147058824

The y term is 1.352941176y.  Take half its coefficient (0.676470588).
Square it (0.4576124564) and add it to both sides.

Add '0.4576124564' to each side of the equation.
1.352941176y + 0.4576124564 + y2 = 1.147058824 + 0.4576124564

Reorder the terms:
0.4576124564 + 1.352941176y + y2 = 1.147058824 + 0.4576124564

Combine like terms: 1.147058824 + 0.4576124564 = 1.6046712804
0.4576124564 + 1.352941176y + y2 = 1.6046712804

Factor a perfect square on the left side:
(y + 0.676470588)(y + 0.676470588) = 1.6046712804

Calculate the square root of the right side: 1.266756204

Break this problem into two subproblems by setting 
(y + 0.676470588) equal to 1.266756204 and -1.266756204.

Subproblem 1

y + 0.676470588 = 1.266756204 Simplifying y + 0.676470588 = 1.266756204 Reorder the terms: 0.676470588 + y = 1.266756204 Solving 0.676470588 + y = 1.266756204 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.676470588' to each side of the equation. 0.676470588 + -0.676470588 + y = 1.266756204 + -0.676470588 Combine like terms: 0.676470588 + -0.676470588 = 0.000000000 0.000000000 + y = 1.266756204 + -0.676470588 y = 1.266756204 + -0.676470588 Combine like terms: 1.266756204 + -0.676470588 = 0.590285616 y = 0.590285616 Simplifying y = 0.590285616

Subproblem 2

y + 0.676470588 = -1.266756204 Simplifying y + 0.676470588 = -1.266756204 Reorder the terms: 0.676470588 + y = -1.266756204 Solving 0.676470588 + y = -1.266756204 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.676470588' to each side of the equation. 0.676470588 + -0.676470588 + y = -1.266756204 + -0.676470588 Combine like terms: 0.676470588 + -0.676470588 = 0.000000000 0.000000000 + y = -1.266756204 + -0.676470588 y = -1.266756204 + -0.676470588 Combine like terms: -1.266756204 + -0.676470588 = -1.943226792 y = -1.943226792 Simplifying y = -1.943226792

Solution

The solution to the problem is based on the solutions from the subproblems. y = {0.590285616, -1.943226792}

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