16t^2-19t-1=0

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Solution for 16t^2-19t-1=0 equation:


Simplifying
16t2 + -19t + -1 = 0

Reorder the terms:
-1 + -19t + 16t2 = 0

Solving
-1 + -19t + 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'.
-0.0625 + -1.1875t + t2 = 0

Move the constant term to the right:

Add '0.0625' to each side of the equation.
-0.0625 + -1.1875t + 0.0625 + t2 = 0 + 0.0625

Reorder the terms:
-0.0625 + 0.0625 + -1.1875t + t2 = 0 + 0.0625

Combine like terms: -0.0625 + 0.0625 = 0.0000
0.0000 + -1.1875t + t2 = 0 + 0.0625
-1.1875t + t2 = 0 + 0.0625

Combine like terms: 0 + 0.0625 = 0.0625
-1.1875t + t2 = 0.0625

The t term is -1.1875t.  Take half its coefficient (-0.59375).
Square it (0.3525390625) and add it to both sides.

Add '0.3525390625' to each side of the equation.
-1.1875t + 0.3525390625 + t2 = 0.0625 + 0.3525390625

Reorder the terms:
0.3525390625 + -1.1875t + t2 = 0.0625 + 0.3525390625

Combine like terms: 0.0625 + 0.3525390625 = 0.4150390625
0.3525390625 + -1.1875t + t2 = 0.4150390625

Factor a perfect square on the left side:
(t + -0.59375)(t + -0.59375) = 0.4150390625

Calculate the square root of the right side: 0.644235254

Break this problem into two subproblems by setting 
(t + -0.59375) equal to 0.644235254 and -0.644235254.

Subproblem 1

t + -0.59375 = 0.644235254 Simplifying t + -0.59375 = 0.644235254 Reorder the terms: -0.59375 + t = 0.644235254 Solving -0.59375 + t = 0.644235254 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.59375' to each side of the equation. -0.59375 + 0.59375 + t = 0.644235254 + 0.59375 Combine like terms: -0.59375 + 0.59375 = 0.00000 0.00000 + t = 0.644235254 + 0.59375 t = 0.644235254 + 0.59375 Combine like terms: 0.644235254 + 0.59375 = 1.237985254 t = 1.237985254 Simplifying t = 1.237985254

Subproblem 2

t + -0.59375 = -0.644235254 Simplifying t + -0.59375 = -0.644235254 Reorder the terms: -0.59375 + t = -0.644235254 Solving -0.59375 + t = -0.644235254 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.59375' to each side of the equation. -0.59375 + 0.59375 + t = -0.644235254 + 0.59375 Combine like terms: -0.59375 + 0.59375 = 0.00000 0.00000 + t = -0.644235254 + 0.59375 t = -0.644235254 + 0.59375 Combine like terms: -0.644235254 + 0.59375 = -0.050485254 t = -0.050485254 Simplifying t = -0.050485254

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.237985254, -0.050485254}

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