t^2-6-2t-20=0

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Solution for t^2-6-2t-20=0 equation:


Simplifying
t2 + -6 + -2t + -20 = 0

Reorder the terms:
-6 + -20 + -2t + t2 = 0

Combine like terms: -6 + -20 = -26
-26 + -2t + t2 = 0

Solving
-26 + -2t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '26' to each side of the equation.
-26 + -2t + 26 + t2 = 0 + 26

Reorder the terms:
-26 + 26 + -2t + t2 = 0 + 26

Combine like terms: -26 + 26 = 0
0 + -2t + t2 = 0 + 26
-2t + t2 = 0 + 26

Combine like terms: 0 + 26 = 26
-2t + t2 = 26

The t term is -2t.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2t + 1 + t2 = 26 + 1

Reorder the terms:
1 + -2t + t2 = 26 + 1

Combine like terms: 26 + 1 = 27
1 + -2t + t2 = 27

Factor a perfect square on the left side:
(t + -1)(t + -1) = 27

Calculate the square root of the right side: 5.196152423

Break this problem into two subproblems by setting 
(t + -1) equal to 5.196152423 and -5.196152423.

Subproblem 1

t + -1 = 5.196152423 Simplifying t + -1 = 5.196152423 Reorder the terms: -1 + t = 5.196152423 Solving -1 + t = 5.196152423 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + t = 5.196152423 + 1 Combine like terms: -1 + 1 = 0 0 + t = 5.196152423 + 1 t = 5.196152423 + 1 Combine like terms: 5.196152423 + 1 = 6.196152423 t = 6.196152423 Simplifying t = 6.196152423

Subproblem 2

t + -1 = -5.196152423 Simplifying t + -1 = -5.196152423 Reorder the terms: -1 + t = -5.196152423 Solving -1 + t = -5.196152423 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + t = -5.196152423 + 1 Combine like terms: -1 + 1 = 0 0 + t = -5.196152423 + 1 t = -5.196152423 + 1 Combine like terms: -5.196152423 + 1 = -4.196152423 t = -4.196152423 Simplifying t = -4.196152423

Solution

The solution to the problem is based on the solutions from the subproblems. t = {6.196152423, -4.196152423}

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