t^2-10t-12=0

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Solution for t^2-10t-12=0 equation:


Simplifying
t2 + -10t + -12 = 0

Reorder the terms:
-12 + -10t + t2 = 0

Solving
-12 + -10t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + -10t + 12 + t2 = 0 + 12

Reorder the terms:
-12 + 12 + -10t + t2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -10t + t2 = 0 + 12
-10t + t2 = 0 + 12

Combine like terms: 0 + 12 = 12
-10t + t2 = 12

The t term is -10t.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10t + 25 + t2 = 12 + 25

Reorder the terms:
25 + -10t + t2 = 12 + 25

Combine like terms: 12 + 25 = 37
25 + -10t + t2 = 37

Factor a perfect square on the left side:
(t + -5)(t + -5) = 37

Calculate the square root of the right side: 6.08276253

Break this problem into two subproblems by setting 
(t + -5) equal to 6.08276253 and -6.08276253.

Subproblem 1

t + -5 = 6.08276253 Simplifying t + -5 = 6.08276253 Reorder the terms: -5 + t = 6.08276253 Solving -5 + t = 6.08276253 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = 6.08276253 + 5 Combine like terms: -5 + 5 = 0 0 + t = 6.08276253 + 5 t = 6.08276253 + 5 Combine like terms: 6.08276253 + 5 = 11.08276253 t = 11.08276253 Simplifying t = 11.08276253

Subproblem 2

t + -5 = -6.08276253 Simplifying t + -5 = -6.08276253 Reorder the terms: -5 + t = -6.08276253 Solving -5 + t = -6.08276253 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + t = -6.08276253 + 5 Combine like terms: -5 + 5 = 0 0 + t = -6.08276253 + 5 t = -6.08276253 + 5 Combine like terms: -6.08276253 + 5 = -1.08276253 t = -1.08276253 Simplifying t = -1.08276253

Solution

The solution to the problem is based on the solutions from the subproblems. t = {11.08276253, -1.08276253}

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