0=8t^2+6t-1

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Solution for 0=8t^2+6t-1 equation:


Simplifying
0 = 8t2 + 6t + -1

Reorder the terms:
0 = -1 + 6t + 8t2

Solving
0 = -1 + 6t + 8t2

Solving for variable 't'.

Combine like terms: 0 + 1 = 1
1 + -6t + -8t2 = -1 + 6t + 8t2 + 1 + -6t + -8t2

Reorder the terms:
1 + -6t + -8t2 = -1 + 1 + 6t + -6t + 8t2 + -8t2

Combine like terms: -1 + 1 = 0
1 + -6t + -8t2 = 0 + 6t + -6t + 8t2 + -8t2
1 + -6t + -8t2 = 6t + -6t + 8t2 + -8t2

Combine like terms: 6t + -6t = 0
1 + -6t + -8t2 = 0 + 8t2 + -8t2
1 + -6t + -8t2 = 8t2 + -8t2

Combine like terms: 8t2 + -8t2 = 0
1 + -6t + -8t2 = 0

Begin completing the square.  Divide all terms by
-8 the coefficient of the squared term: 

Divide each side by '-8'.
-0.125 + 0.75t + t2 = 0

Move the constant term to the right:

Add '0.125' to each side of the equation.
-0.125 + 0.75t + 0.125 + t2 = 0 + 0.125

Reorder the terms:
-0.125 + 0.125 + 0.75t + t2 = 0 + 0.125

Combine like terms: -0.125 + 0.125 = 0.000
0.000 + 0.75t + t2 = 0 + 0.125
0.75t + t2 = 0 + 0.125

Combine like terms: 0 + 0.125 = 0.125
0.75t + t2 = 0.125

The t term is 0.75t.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75t + 0.140625 + t2 = 0.125 + 0.140625

Reorder the terms:
0.140625 + 0.75t + t2 = 0.125 + 0.140625

Combine like terms: 0.125 + 0.140625 = 0.265625
0.140625 + 0.75t + t2 = 0.265625

Factor a perfect square on the left side:
(t + 0.375)(t + 0.375) = 0.265625

Calculate the square root of the right side: 0.515388203

Break this problem into two subproblems by setting 
(t + 0.375) equal to 0.515388203 and -0.515388203.

Subproblem 1

t + 0.375 = 0.515388203 Simplifying t + 0.375 = 0.515388203 Reorder the terms: 0.375 + t = 0.515388203 Solving 0.375 + t = 0.515388203 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + t = 0.515388203 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + t = 0.515388203 + -0.375 t = 0.515388203 + -0.375 Combine like terms: 0.515388203 + -0.375 = 0.140388203 t = 0.140388203 Simplifying t = 0.140388203

Subproblem 2

t + 0.375 = -0.515388203 Simplifying t + 0.375 = -0.515388203 Reorder the terms: 0.375 + t = -0.515388203 Solving 0.375 + t = -0.515388203 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + t = -0.515388203 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + t = -0.515388203 + -0.375 t = -0.515388203 + -0.375 Combine like terms: -0.515388203 + -0.375 = -0.890388203 t = -0.890388203 Simplifying t = -0.890388203

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.140388203, -0.890388203}

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