3t(2t-1)=8

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Solution for 3t(2t-1)=8 equation:


Simplifying
3t(2t + -1) = 8

Reorder the terms:
3t(-1 + 2t) = 8
(-1 * 3t + 2t * 3t) = 8
(-3t + 6t2) = 8

Solving
-3t + 6t2 = 8

Solving for variable 't'.

Reorder the terms:
-8 + -3t + 6t2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + -3t + 6t2 = 0

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

Divide each side by '6'.
-1.333333333 + -0.5t + t2 = 0

Move the constant term to the right:

Add '1.333333333' to each side of the equation.
-1.333333333 + -0.5t + 1.333333333 + t2 = 0 + 1.333333333

Reorder the terms:
-1.333333333 + 1.333333333 + -0.5t + t2 = 0 + 1.333333333

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
0.000000000 + -0.5t + t2 = 0 + 1.333333333
-0.5t + t2 = 0 + 1.333333333

Combine like terms: 0 + 1.333333333 = 1.333333333
-0.5t + t2 = 1.333333333

The t term is -0.5t.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5t + 0.0625 + t2 = 1.333333333 + 0.0625

Reorder the terms:
0.0625 + -0.5t + t2 = 1.333333333 + 0.0625

Combine like terms: 1.333333333 + 0.0625 = 1.395833333
0.0625 + -0.5t + t2 = 1.395833333

Factor a perfect square on the left side:
(t + -0.25)(t + -0.25) = 1.395833333

Calculate the square root of the right side: 1.181453906

Break this problem into two subproblems by setting 
(t + -0.25) equal to 1.181453906 and -1.181453906.

Subproblem 1

t + -0.25 = 1.181453906 Simplifying t + -0.25 = 1.181453906 Reorder the terms: -0.25 + t = 1.181453906 Solving -0.25 + t = 1.181453906 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + t = 1.181453906 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + t = 1.181453906 + 0.25 t = 1.181453906 + 0.25 Combine like terms: 1.181453906 + 0.25 = 1.431453906 t = 1.431453906 Simplifying t = 1.431453906

Subproblem 2

t + -0.25 = -1.181453906 Simplifying t + -0.25 = -1.181453906 Reorder the terms: -0.25 + t = -1.181453906 Solving -0.25 + t = -1.181453906 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + t = -1.181453906 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + t = -1.181453906 + 0.25 t = -1.181453906 + 0.25 Combine like terms: -1.181453906 + 0.25 = -0.931453906 t = -0.931453906 Simplifying t = -0.931453906

Solution

The solution to the problem is based on the solutions from the subproblems. t = {1.431453906, -0.931453906}

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