8t^2-15t+6=0

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Solution for 8t^2-15t+6=0 equation:


Simplifying
8t2 + -15t + 6 = 0

Reorder the terms:
6 + -15t + 8t2 = 0

Solving
6 + -15t + 8t2 = 0

Solving for variable 't'.

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

Divide each side by '8'.
0.75 + -1.875t + t2 = 0

Move the constant term to the right:

Add '-0.75' to each side of the equation.
0.75 + -1.875t + -0.75 + t2 = 0 + -0.75

Reorder the terms:
0.75 + -0.75 + -1.875t + t2 = 0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -1.875t + t2 = 0 + -0.75
-1.875t + t2 = 0 + -0.75

Combine like terms: 0 + -0.75 = -0.75
-1.875t + t2 = -0.75

The t term is -1.875t.  Take half its coefficient (-0.9375).
Square it (0.87890625) and add it to both sides.

Add '0.87890625' to each side of the equation.
-1.875t + 0.87890625 + t2 = -0.75 + 0.87890625

Reorder the terms:
0.87890625 + -1.875t + t2 = -0.75 + 0.87890625

Combine like terms: -0.75 + 0.87890625 = 0.12890625
0.87890625 + -1.875t + t2 = 0.12890625

Factor a perfect square on the left side:
(t + -0.9375)(t + -0.9375) = 0.12890625

Calculate the square root of the right side: 0.359035165

Break this problem into two subproblems by setting 
(t + -0.9375) equal to 0.359035165 and -0.359035165.

Subproblem 1

t + -0.9375 = 0.359035165 Simplifying t + -0.9375 = 0.359035165 Reorder the terms: -0.9375 + t = 0.359035165 Solving -0.9375 + t = 0.359035165 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.9375' to each side of the equation. -0.9375 + 0.9375 + t = 0.359035165 + 0.9375 Combine like terms: -0.9375 + 0.9375 = 0.0000 0.0000 + t = 0.359035165 + 0.9375 t = 0.359035165 + 0.9375 Combine like terms: 0.359035165 + 0.9375 = 1.296535165 t = 1.296535165 Simplifying t = 1.296535165

Subproblem 2

t + -0.9375 = -0.359035165 Simplifying t + -0.9375 = -0.359035165 Reorder the terms: -0.9375 + t = -0.359035165 Solving -0.9375 + t = -0.359035165 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.9375' to each side of the equation. -0.9375 + 0.9375 + t = -0.359035165 + 0.9375 Combine like terms: -0.9375 + 0.9375 = 0.0000 0.0000 + t = -0.359035165 + 0.9375 t = -0.359035165 + 0.9375 Combine like terms: -0.359035165 + 0.9375 = 0.578464835 t = 0.578464835 Simplifying t = 0.578464835

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.296535165, 0.578464835}

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