2.7t^2-13t+5=3

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Solution for 2.7t^2-13t+5=3 equation:


Simplifying
2.7t2 + -13t + 5 = 3

Reorder the terms:
5 + -13t + 2.7t2 = 3

Solving
5 + -13t + 2.7t2 = 3

Solving for variable 't'.

Reorder the terms:
5 + -3 + -13t + 2.7t2 = 3 + -3

Combine like terms: 5 + -3 = 2
2 + -13t + 2.7t2 = 3 + -3

Combine like terms: 3 + -3 = 0
2 + -13t + 2.7t2 = 0

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

Divide each side by '2.7'.
0.7407407407 + -4.814814815t + t2 = 0

Move the constant term to the right:

Add '-0.7407407407' to each side of the equation.
0.7407407407 + -4.814814815t + -0.7407407407 + t2 = 0 + -0.7407407407

Reorder the terms:
0.7407407407 + -0.7407407407 + -4.814814815t + t2 = 0 + -0.7407407407

Combine like terms: 0.7407407407 + -0.7407407407 = 0.0000000000
0.0000000000 + -4.814814815t + t2 = 0 + -0.7407407407
-4.814814815t + t2 = 0 + -0.7407407407

Combine like terms: 0 + -0.7407407407 = -0.7407407407
-4.814814815t + t2 = -0.7407407407

The t term is -4.814814815t.  Take half its coefficient (-2.407407408).
Square it (5.795610428) and add it to both sides.

Add '5.795610428' to each side of the equation.
-4.814814815t + 5.795610428 + t2 = -0.7407407407 + 5.795610428

Reorder the terms:
5.795610428 + -4.814814815t + t2 = -0.7407407407 + 5.795610428

Combine like terms: -0.7407407407 + 5.795610428 = 5.0548696873
5.795610428 + -4.814814815t + t2 = 5.0548696873

Factor a perfect square on the left side:
(t + -2.407407408)(t + -2.407407408) = 5.0548696873

Calculate the square root of the right side: 2.248303736

Break this problem into two subproblems by setting 
(t + -2.407407408) equal to 2.248303736 and -2.248303736.

Subproblem 1

t + -2.407407408 = 2.248303736 Simplifying t + -2.407407408 = 2.248303736 Reorder the terms: -2.407407408 + t = 2.248303736 Solving -2.407407408 + t = 2.248303736 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.407407408' to each side of the equation. -2.407407408 + 2.407407408 + t = 2.248303736 + 2.407407408 Combine like terms: -2.407407408 + 2.407407408 = 0.000000000 0.000000000 + t = 2.248303736 + 2.407407408 t = 2.248303736 + 2.407407408 Combine like terms: 2.248303736 + 2.407407408 = 4.655711144 t = 4.655711144 Simplifying t = 4.655711144

Subproblem 2

t + -2.407407408 = -2.248303736 Simplifying t + -2.407407408 = -2.248303736 Reorder the terms: -2.407407408 + t = -2.248303736 Solving -2.407407408 + t = -2.248303736 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.407407408' to each side of the equation. -2.407407408 + 2.407407408 + t = -2.248303736 + 2.407407408 Combine like terms: -2.407407408 + 2.407407408 = 0.000000000 0.000000000 + t = -2.248303736 + 2.407407408 t = -2.248303736 + 2.407407408 Combine like terms: -2.248303736 + 2.407407408 = 0.159103672 t = 0.159103672 Simplifying t = 0.159103672

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.655711144, 0.159103672}

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