5=6t-1.5t^2

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Solution for 5=6t-1.5t^2 equation:


Simplifying
5 = 6t + -1.5t2

Solving
5 = 6t + -1.5t2

Solving for variable 't'.

Reorder the terms:
5 + -6t + 1.5t2 = 6t + -6t + -1.5t2 + 1.5t2

Combine like terms: 6t + -6t = 0
5 + -6t + 1.5t2 = 0 + -1.5t2 + 1.5t2
5 + -6t + 1.5t2 = -1.5t2 + 1.5t2

Combine like terms: -1.5t2 + 1.5t2 = 0.0
5 + -6t + 1.5t2 = 0.0

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

Divide each side by '1.5'.
3.333333333 + -4t + t2 = 0

Move the constant term to the right:

Add '-3.333333333' to each side of the equation.
3.333333333 + -4t + -3.333333333 + t2 = 0 + -3.333333333

Reorder the terms:
3.333333333 + -3.333333333 + -4t + t2 = 0 + -3.333333333

Combine like terms: 3.333333333 + -3.333333333 = 0.000000000
0.000000000 + -4t + t2 = 0 + -3.333333333
-4t + t2 = 0 + -3.333333333

Combine like terms: 0 + -3.333333333 = -3.333333333
-4t + t2 = -3.333333333

The t term is -4t.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4t + 4 + t2 = -3.333333333 + 4

Reorder the terms:
4 + -4t + t2 = -3.333333333 + 4

Combine like terms: -3.333333333 + 4 = 0.666666667
4 + -4t + t2 = 0.666666667

Factor a perfect square on the left side:
(t + -2)(t + -2) = 0.666666667

Calculate the square root of the right side: 0.816496581

Break this problem into two subproblems by setting 
(t + -2) equal to 0.816496581 and -0.816496581.

Subproblem 1

t + -2 = 0.816496581 Simplifying t + -2 = 0.816496581 Reorder the terms: -2 + t = 0.816496581 Solving -2 + t = 0.816496581 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + t = 0.816496581 + 2 Combine like terms: -2 + 2 = 0 0 + t = 0.816496581 + 2 t = 0.816496581 + 2 Combine like terms: 0.816496581 + 2 = 2.816496581 t = 2.816496581 Simplifying t = 2.816496581

Subproblem 2

t + -2 = -0.816496581 Simplifying t + -2 = -0.816496581 Reorder the terms: -2 + t = -0.816496581 Solving -2 + t = -0.816496581 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + t = -0.816496581 + 2 Combine like terms: -2 + 2 = 0 0 + t = -0.816496581 + 2 t = -0.816496581 + 2 Combine like terms: -0.816496581 + 2 = 1.183503419 t = 1.183503419 Simplifying t = 1.183503419

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.816496581, 1.183503419}

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