7.29y^2-3028y+100170=0

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Solution for 7.29y^2-3028y+100170=0 equation:


Simplifying
7.29y2 + -3028y + 100170 = 0

Reorder the terms:
100170 + -3028y + 7.29y2 = 0

Solving
100170 + -3028y + 7.29y2 = 0

Solving for variable 'y'.

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

Divide each side by '7.29'.
13740.74074 + -415.3635117y + y2 = 0

Move the constant term to the right:

Add '-13740.74074' to each side of the equation.
13740.74074 + -415.3635117y + -13740.74074 + y2 = 0 + -13740.74074

Reorder the terms:
13740.74074 + -13740.74074 + -415.3635117y + y2 = 0 + -13740.74074

Combine like terms: 13740.74074 + -13740.74074 = 0.00000
0.00000 + -415.3635117y + y2 = 0 + -13740.74074
-415.3635117y + y2 = 0 + -13740.74074

Combine like terms: 0 + -13740.74074 = -13740.74074
-415.3635117y + y2 = -13740.74074

The y term is -415.3635117y.  Take half its coefficient (-207.6817559).
Square it (43131.71173) and add it to both sides.

Add '43131.71173' to each side of the equation.
-415.3635117y + 43131.71173 + y2 = -13740.74074 + 43131.71173

Reorder the terms:
43131.71173 + -415.3635117y + y2 = -13740.74074 + 43131.71173

Combine like terms: -13740.74074 + 43131.71173 = 29390.97099
43131.71173 + -415.3635117y + y2 = 29390.97099

Factor a perfect square on the left side:
(y + -207.6817559)(y + -207.6817559) = 29390.97099

Calculate the square root of the right side: 171.437950845

Break this problem into two subproblems by setting 
(y + -207.6817559) equal to 171.437950845 and -171.437950845.

Subproblem 1

y + -207.6817559 = 171.437950845 Simplifying y + -207.6817559 = 171.437950845 Reorder the terms: -207.6817559 + y = 171.437950845 Solving -207.6817559 + y = 171.437950845 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '207.6817559' to each side of the equation. -207.6817559 + 207.6817559 + y = 171.437950845 + 207.6817559 Combine like terms: -207.6817559 + 207.6817559 = 0.0000000 0.0000000 + y = 171.437950845 + 207.6817559 y = 171.437950845 + 207.6817559 Combine like terms: 171.437950845 + 207.6817559 = 379.119706745 y = 379.119706745 Simplifying y = 379.119706745

Subproblem 2

y + -207.6817559 = -171.437950845 Simplifying y + -207.6817559 = -171.437950845 Reorder the terms: -207.6817559 + y = -171.437950845 Solving -207.6817559 + y = -171.437950845 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '207.6817559' to each side of the equation. -207.6817559 + 207.6817559 + y = -171.437950845 + 207.6817559 Combine like terms: -207.6817559 + 207.6817559 = 0.0000000 0.0000000 + y = -171.437950845 + 207.6817559 y = -171.437950845 + 207.6817559 Combine like terms: -171.437950845 + 207.6817559 = 36.243805055 y = 36.243805055 Simplifying y = 36.243805055

Solution

The solution to the problem is based on the solutions from the subproblems. y = {379.119706745, 36.243805055}

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