2t^2+81t-1190=0

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Solution for 2t^2+81t-1190=0 equation:


Simplifying
2t2 + 81t + -1190 = 0

Reorder the terms:
-1190 + 81t + 2t2 = 0

Solving
-1190 + 81t + 2t2 = 0

Solving for variable 't'.

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

Divide each side by '2'.
-595 + 40.5t + t2 = 0

Move the constant term to the right:

Add '595' to each side of the equation.
-595 + 40.5t + 595 + t2 = 0 + 595

Reorder the terms:
-595 + 595 + 40.5t + t2 = 0 + 595

Combine like terms: -595 + 595 = 0
0 + 40.5t + t2 = 0 + 595
40.5t + t2 = 0 + 595

Combine like terms: 0 + 595 = 595
40.5t + t2 = 595

The t term is 40.5t.  Take half its coefficient (20.25).
Square it (410.0625) and add it to both sides.

Add '410.0625' to each side of the equation.
40.5t + 410.0625 + t2 = 595 + 410.0625

Reorder the terms:
410.0625 + 40.5t + t2 = 595 + 410.0625

Combine like terms: 595 + 410.0625 = 1005.0625
410.0625 + 40.5t + t2 = 1005.0625

Factor a perfect square on the left side:
(t + 20.25)(t + 20.25) = 1005.0625

Calculate the square root of the right side: 31.702720703

Break this problem into two subproblems by setting 
(t + 20.25) equal to 31.702720703 and -31.702720703.

Subproblem 1

t + 20.25 = 31.702720703 Simplifying t + 20.25 = 31.702720703 Reorder the terms: 20.25 + t = 31.702720703 Solving 20.25 + t = 31.702720703 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-20.25' to each side of the equation. 20.25 + -20.25 + t = 31.702720703 + -20.25 Combine like terms: 20.25 + -20.25 = 0.00 0.00 + t = 31.702720703 + -20.25 t = 31.702720703 + -20.25 Combine like terms: 31.702720703 + -20.25 = 11.452720703 t = 11.452720703 Simplifying t = 11.452720703

Subproblem 2

t + 20.25 = -31.702720703 Simplifying t + 20.25 = -31.702720703 Reorder the terms: 20.25 + t = -31.702720703 Solving 20.25 + t = -31.702720703 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-20.25' to each side of the equation. 20.25 + -20.25 + t = -31.702720703 + -20.25 Combine like terms: 20.25 + -20.25 = 0.00 0.00 + t = -31.702720703 + -20.25 t = -31.702720703 + -20.25 Combine like terms: -31.702720703 + -20.25 = -51.952720703 t = -51.952720703 Simplifying t = -51.952720703

Solution

The solution to the problem is based on the solutions from the subproblems. t = {11.452720703, -51.952720703}

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