19.8108t^2-135.22t+125=0

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Solution for 19.8108t^2-135.22t+125=0 equation:


Simplifying
19.8108t2 + -135.22t + 125 = 0

Reorder the terms:
125 + -135.22t + 19.8108t2 = 0

Solving
125 + -135.22t + 19.8108t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
19.8108 the coefficient of the squared term: 

Divide each side by '19.8108'.
6.309689664 + -6.825569891t + t2 = 0

Move the constant term to the right:

Add '-6.309689664' to each side of the equation.
6.309689664 + -6.825569891t + -6.309689664 + t2 = 0 + -6.309689664

Reorder the terms:
6.309689664 + -6.309689664 + -6.825569891t + t2 = 0 + -6.309689664

Combine like terms: 6.309689664 + -6.309689664 = 0.000000000
0.000000000 + -6.825569891t + t2 = 0 + -6.309689664
-6.825569891t + t2 = 0 + -6.309689664

Combine like terms: 0 + -6.309689664 = -6.309689664
-6.825569891t + t2 = -6.309689664

The t term is -6.825569891t.  Take half its coefficient (-3.412784946).
Square it (11.64710109) and add it to both sides.

Add '11.64710109' to each side of the equation.
-6.825569891t + 11.64710109 + t2 = -6.309689664 + 11.64710109

Reorder the terms:
11.64710109 + -6.825569891t + t2 = -6.309689664 + 11.64710109

Combine like terms: -6.309689664 + 11.64710109 = 5.337411426
11.64710109 + -6.825569891t + t2 = 5.337411426

Factor a perfect square on the left side:
(t + -3.412784946)(t + -3.412784946) = 5.337411426

Calculate the square root of the right side: 2.310283841

Break this problem into two subproblems by setting 
(t + -3.412784946) equal to 2.310283841 and -2.310283841.

Subproblem 1

t + -3.412784946 = 2.310283841 Simplifying t + -3.412784946 = 2.310283841 Reorder the terms: -3.412784946 + t = 2.310283841 Solving -3.412784946 + t = 2.310283841 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.412784946' to each side of the equation. -3.412784946 + 3.412784946 + t = 2.310283841 + 3.412784946 Combine like terms: -3.412784946 + 3.412784946 = 0.000000000 0.000000000 + t = 2.310283841 + 3.412784946 t = 2.310283841 + 3.412784946 Combine like terms: 2.310283841 + 3.412784946 = 5.723068787 t = 5.723068787 Simplifying t = 5.723068787

Subproblem 2

t + -3.412784946 = -2.310283841 Simplifying t + -3.412784946 = -2.310283841 Reorder the terms: -3.412784946 + t = -2.310283841 Solving -3.412784946 + t = -2.310283841 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.412784946' to each side of the equation. -3.412784946 + 3.412784946 + t = -2.310283841 + 3.412784946 Combine like terms: -3.412784946 + 3.412784946 = 0.000000000 0.000000000 + t = -2.310283841 + 3.412784946 t = -2.310283841 + 3.412784946 Combine like terms: -2.310283841 + 3.412784946 = 1.102501105 t = 1.102501105 Simplifying t = 1.102501105

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.723068787, 1.102501105}

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