19.9908t^2-135.9t+124.8=0

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Solution for 19.9908t^2-135.9t+124.8=0 equation:


Simplifying
19.9908t2 + -135.9t + 124.8 = 0

Reorder the terms:
124.8 + -135.9t + 19.9908t2 = 0

Solving
124.8 + -135.9t + 19.9908t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
19.9908 the coefficient of the squared term: 

Divide each side by '19.9908'.
6.242871721 + -6.798127138t + t2 = 0

Move the constant term to the right:

Add '-6.242871721' to each side of the equation.
6.242871721 + -6.798127138t + -6.242871721 + t2 = 0 + -6.242871721

Reorder the terms:
6.242871721 + -6.242871721 + -6.798127138t + t2 = 0 + -6.242871721

Combine like terms: 6.242871721 + -6.242871721 = 0.000000000
0.000000000 + -6.798127138t + t2 = 0 + -6.242871721
-6.798127138t + t2 = 0 + -6.242871721

Combine like terms: 0 + -6.242871721 = -6.242871721
-6.798127138t + t2 = -6.242871721

The t term is -6.798127138t.  Take half its coefficient (-3.399063569).
Square it (11.55363315) and add it to both sides.

Add '11.55363315' to each side of the equation.
-6.798127138t + 11.55363315 + t2 = -6.242871721 + 11.55363315

Reorder the terms:
11.55363315 + -6.798127138t + t2 = -6.242871721 + 11.55363315

Combine like terms: -6.242871721 + 11.55363315 = 5.310761429
11.55363315 + -6.798127138t + t2 = 5.310761429

Factor a perfect square on the left side:
(t + -3.399063569)(t + -3.399063569) = 5.310761429

Calculate the square root of the right side: 2.304508934

Break this problem into two subproblems by setting 
(t + -3.399063569) equal to 2.304508934 and -2.304508934.

Subproblem 1

t + -3.399063569 = 2.304508934 Simplifying t + -3.399063569 = 2.304508934 Reorder the terms: -3.399063569 + t = 2.304508934 Solving -3.399063569 + t = 2.304508934 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.399063569' to each side of the equation. -3.399063569 + 3.399063569 + t = 2.304508934 + 3.399063569 Combine like terms: -3.399063569 + 3.399063569 = 0.000000000 0.000000000 + t = 2.304508934 + 3.399063569 t = 2.304508934 + 3.399063569 Combine like terms: 2.304508934 + 3.399063569 = 5.703572503 t = 5.703572503 Simplifying t = 5.703572503

Subproblem 2

t + -3.399063569 = -2.304508934 Simplifying t + -3.399063569 = -2.304508934 Reorder the terms: -3.399063569 + t = -2.304508934 Solving -3.399063569 + t = -2.304508934 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.399063569' to each side of the equation. -3.399063569 + 3.399063569 + t = -2.304508934 + 3.399063569 Combine like terms: -3.399063569 + 3.399063569 = 0.000000000 0.000000000 + t = -2.304508934 + 3.399063569 t = -2.304508934 + 3.399063569 Combine like terms: -2.304508934 + 3.399063569 = 1.094554635 t = 1.094554635 Simplifying t = 1.094554635

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.703572503, 1.094554635}

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