16t^2-125t-144=0

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Solution for 16t^2-125t-144=0 equation:


Simplifying
16t2 + -125t + -144 = 0

Reorder the terms:
-144 + -125t + 16t2 = 0

Solving
-144 + -125t + 16t2 = 0

Solving for variable 't'.

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

Divide each side by '16'.
-9 + -7.8125t + t2 = 0

Move the constant term to the right:

Add '9' to each side of the equation.
-9 + -7.8125t + 9 + t2 = 0 + 9

Reorder the terms:
-9 + 9 + -7.8125t + t2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -7.8125t + t2 = 0 + 9
-7.8125t + t2 = 0 + 9

Combine like terms: 0 + 9 = 9
-7.8125t + t2 = 9

The t term is -7.8125t.  Take half its coefficient (-3.90625).
Square it (15.25878906) and add it to both sides.

Add '15.25878906' to each side of the equation.
-7.8125t + 15.25878906 + t2 = 9 + 15.25878906

Reorder the terms:
15.25878906 + -7.8125t + t2 = 9 + 15.25878906

Combine like terms: 9 + 15.25878906 = 24.25878906
15.25878906 + -7.8125t + t2 = 24.25878906

Factor a perfect square on the left side:
(t + -3.90625)(t + -3.90625) = 24.25878906

Calculate the square root of the right side: 4.925321214

Break this problem into two subproblems by setting 
(t + -3.90625) equal to 4.925321214 and -4.925321214.

Subproblem 1

t + -3.90625 = 4.925321214 Simplifying t + -3.90625 = 4.925321214 Reorder the terms: -3.90625 + t = 4.925321214 Solving -3.90625 + t = 4.925321214 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.90625' to each side of the equation. -3.90625 + 3.90625 + t = 4.925321214 + 3.90625 Combine like terms: -3.90625 + 3.90625 = 0.00000 0.00000 + t = 4.925321214 + 3.90625 t = 4.925321214 + 3.90625 Combine like terms: 4.925321214 + 3.90625 = 8.831571214 t = 8.831571214 Simplifying t = 8.831571214

Subproblem 2

t + -3.90625 = -4.925321214 Simplifying t + -3.90625 = -4.925321214 Reorder the terms: -3.90625 + t = -4.925321214 Solving -3.90625 + t = -4.925321214 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '3.90625' to each side of the equation. -3.90625 + 3.90625 + t = -4.925321214 + 3.90625 Combine like terms: -3.90625 + 3.90625 = 0.00000 0.00000 + t = -4.925321214 + 3.90625 t = -4.925321214 + 3.90625 Combine like terms: -4.925321214 + 3.90625 = -1.019071214 t = -1.019071214 Simplifying t = -1.019071214

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.831571214, -1.019071214}

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