(12t^2-t)-14(12t^2+t)+13=0

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Solution for (12t^2-t)-14(12t^2+t)+13=0 equation:


Simplifying
(12t2 + -1t) + -14(12t2 + t) + 13 = 0

Reorder the terms:
(-1t + 12t2) + -14(12t2 + t) + 13 = 0

Remove parenthesis around (-1t + 12t2)
-1t + 12t2 + -14(12t2 + t) + 13 = 0

Reorder the terms:
-1t + 12t2 + -14(t + 12t2) + 13 = 0
-1t + 12t2 + (t * -14 + 12t2 * -14) + 13 = 0
-1t + 12t2 + (-14t + -168t2) + 13 = 0

Reorder the terms:
13 + -1t + -14t + 12t2 + -168t2 = 0

Combine like terms: -1t + -14t = -15t
13 + -15t + 12t2 + -168t2 = 0

Combine like terms: 12t2 + -168t2 = -156t2
13 + -15t + -156t2 = 0

Solving
13 + -15t + -156t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-156 the coefficient of the squared term: 

Divide each side by '-156'.
-0.08333333333 + 0.09615384615t + t2 = 0

Move the constant term to the right:

Add '0.08333333333' to each side of the equation.
-0.08333333333 + 0.09615384615t + 0.08333333333 + t2 = 0 + 0.08333333333

Reorder the terms:
-0.08333333333 + 0.08333333333 + 0.09615384615t + t2 = 0 + 0.08333333333

Combine like terms: -0.08333333333 + 0.08333333333 = 0.00000000000
0.00000000000 + 0.09615384615t + t2 = 0 + 0.08333333333
0.09615384615t + t2 = 0 + 0.08333333333

Combine like terms: 0 + 0.08333333333 = 0.08333333333
0.09615384615t + t2 = 0.08333333333

The t term is 0.09615384615t.  Take half its coefficient (0.04807692308).
Square it (0.002311390533) and add it to both sides.

Add '0.002311390533' to each side of the equation.
0.09615384615t + 0.002311390533 + t2 = 0.08333333333 + 0.002311390533

Reorder the terms:
0.002311390533 + 0.09615384615t + t2 = 0.08333333333 + 0.002311390533

Combine like terms: 0.08333333333 + 0.002311390533 = 0.085644723863
0.002311390533 + 0.09615384615t + t2 = 0.085644723863

Factor a perfect square on the left side:
(t + 0.04807692308)(t + 0.04807692308) = 0.085644723863

Calculate the square root of the right side: 0.292651198

Break this problem into two subproblems by setting 
(t + 0.04807692308) equal to 0.292651198 and -0.292651198.

Subproblem 1

t + 0.04807692308 = 0.292651198 Simplifying t + 0.04807692308 = 0.292651198 Reorder the terms: 0.04807692308 + t = 0.292651198 Solving 0.04807692308 + t = 0.292651198 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.04807692308' to each side of the equation. 0.04807692308 + -0.04807692308 + t = 0.292651198 + -0.04807692308 Combine like terms: 0.04807692308 + -0.04807692308 = 0.00000000000 0.00000000000 + t = 0.292651198 + -0.04807692308 t = 0.292651198 + -0.04807692308 Combine like terms: 0.292651198 + -0.04807692308 = 0.24457427492 t = 0.24457427492 Simplifying t = 0.24457427492

Subproblem 2

t + 0.04807692308 = -0.292651198 Simplifying t + 0.04807692308 = -0.292651198 Reorder the terms: 0.04807692308 + t = -0.292651198 Solving 0.04807692308 + t = -0.292651198 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.04807692308' to each side of the equation. 0.04807692308 + -0.04807692308 + t = -0.292651198 + -0.04807692308 Combine like terms: 0.04807692308 + -0.04807692308 = 0.00000000000 0.00000000000 + t = -0.292651198 + -0.04807692308 t = -0.292651198 + -0.04807692308 Combine like terms: -0.292651198 + -0.04807692308 = -0.34072812108 t = -0.34072812108 Simplifying t = -0.34072812108

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.24457427492, -0.34072812108}

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