t^2+12t-5=0

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Solution for t^2+12t-5=0 equation:


Simplifying
t2 + 12t + -5 = 0

Reorder the terms:
-5 + 12t + t2 = 0

Solving
-5 + 12t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + 12t + 5 + t2 = 0 + 5

Reorder the terms:
-5 + 5 + 12t + t2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 12t + t2 = 0 + 5
12t + t2 = 0 + 5

Combine like terms: 0 + 5 = 5
12t + t2 = 5

The t term is 12t.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12t + 36 + t2 = 5 + 36

Reorder the terms:
36 + 12t + t2 = 5 + 36

Combine like terms: 5 + 36 = 41
36 + 12t + t2 = 41

Factor a perfect square on the left side:
(t + 6)(t + 6) = 41

Calculate the square root of the right side: 6.403124237

Break this problem into two subproblems by setting 
(t + 6) equal to 6.403124237 and -6.403124237.

Subproblem 1

t + 6 = 6.403124237 Simplifying t + 6 = 6.403124237 Reorder the terms: 6 + t = 6.403124237 Solving 6 + t = 6.403124237 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + t = 6.403124237 + -6 Combine like terms: 6 + -6 = 0 0 + t = 6.403124237 + -6 t = 6.403124237 + -6 Combine like terms: 6.403124237 + -6 = 0.403124237 t = 0.403124237 Simplifying t = 0.403124237

Subproblem 2

t + 6 = -6.403124237 Simplifying t + 6 = -6.403124237 Reorder the terms: 6 + t = -6.403124237 Solving 6 + t = -6.403124237 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + t = -6.403124237 + -6 Combine like terms: 6 + -6 = 0 0 + t = -6.403124237 + -6 t = -6.403124237 + -6 Combine like terms: -6.403124237 + -6 = -12.403124237 t = -12.403124237 Simplifying t = -12.403124237

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.403124237, -12.403124237}

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