16t^2-65t-2=0

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Solution for 16t^2-65t-2=0 equation:


Simplifying
16t2 + -65t + -2 = 0

Reorder the terms:
-2 + -65t + 16t2 = 0

Solving
-2 + -65t + 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'.
-0.125 + -4.0625t + t2 = 0

Move the constant term to the right:

Add '0.125' to each side of the equation.
-0.125 + -4.0625t + 0.125 + t2 = 0 + 0.125

Reorder the terms:
-0.125 + 0.125 + -4.0625t + t2 = 0 + 0.125

Combine like terms: -0.125 + 0.125 = 0.000
0.000 + -4.0625t + t2 = 0 + 0.125
-4.0625t + t2 = 0 + 0.125

Combine like terms: 0 + 0.125 = 0.125
-4.0625t + t2 = 0.125

The t term is -4.0625t.  Take half its coefficient (-2.03125).
Square it (4.125976563) and add it to both sides.

Add '4.125976563' to each side of the equation.
-4.0625t + 4.125976563 + t2 = 0.125 + 4.125976563

Reorder the terms:
4.125976563 + -4.0625t + t2 = 0.125 + 4.125976563

Combine like terms: 0.125 + 4.125976563 = 4.250976563
4.125976563 + -4.0625t + t2 = 4.250976563

Factor a perfect square on the left side:
(t + -2.03125)(t + -2.03125) = 4.250976563

Calculate the square root of the right side: 2.061789651

Break this problem into two subproblems by setting 
(t + -2.03125) equal to 2.061789651 and -2.061789651.

Subproblem 1

t + -2.03125 = 2.061789651 Simplifying t + -2.03125 = 2.061789651 Reorder the terms: -2.03125 + t = 2.061789651 Solving -2.03125 + t = 2.061789651 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.03125' to each side of the equation. -2.03125 + 2.03125 + t = 2.061789651 + 2.03125 Combine like terms: -2.03125 + 2.03125 = 0.00000 0.00000 + t = 2.061789651 + 2.03125 t = 2.061789651 + 2.03125 Combine like terms: 2.061789651 + 2.03125 = 4.093039651 t = 4.093039651 Simplifying t = 4.093039651

Subproblem 2

t + -2.03125 = -2.061789651 Simplifying t + -2.03125 = -2.061789651 Reorder the terms: -2.03125 + t = -2.061789651 Solving -2.03125 + t = -2.061789651 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.03125' to each side of the equation. -2.03125 + 2.03125 + t = -2.061789651 + 2.03125 Combine like terms: -2.03125 + 2.03125 = 0.00000 0.00000 + t = -2.061789651 + 2.03125 t = -2.061789651 + 2.03125 Combine like terms: -2.061789651 + 2.03125 = -0.030539651 t = -0.030539651 Simplifying t = -0.030539651

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.093039651, -0.030539651}

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