77t=77-16t^2

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Solution for 77t=77-16t^2 equation:


Simplifying
77t = 77 + -16t2

Solving
77t = 77 + -16t2

Solving for variable 't'.

Reorder the terms:
-77 + 77t + 16t2 = 77 + -16t2 + -77 + 16t2

Reorder the terms:
-77 + 77t + 16t2 = 77 + -77 + -16t2 + 16t2

Combine like terms: 77 + -77 = 0
-77 + 77t + 16t2 = 0 + -16t2 + 16t2
-77 + 77t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
-77 + 77t + 16t2 = 0

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

Divide each side by '16'.
-4.8125 + 4.8125t + t2 = 0

Move the constant term to the right:

Add '4.8125' to each side of the equation.
-4.8125 + 4.8125t + 4.8125 + t2 = 0 + 4.8125

Reorder the terms:
-4.8125 + 4.8125 + 4.8125t + t2 = 0 + 4.8125

Combine like terms: -4.8125 + 4.8125 = 0.0000
0.0000 + 4.8125t + t2 = 0 + 4.8125
4.8125t + t2 = 0 + 4.8125

Combine like terms: 0 + 4.8125 = 4.8125
4.8125t + t2 = 4.8125

The t term is 4.8125t.  Take half its coefficient (2.40625).
Square it (5.790039063) and add it to both sides.

Add '5.790039063' to each side of the equation.
4.8125t + 5.790039063 + t2 = 4.8125 + 5.790039063

Reorder the terms:
5.790039063 + 4.8125t + t2 = 4.8125 + 5.790039063

Combine like terms: 4.8125 + 5.790039063 = 10.602539063
5.790039063 + 4.8125t + t2 = 10.602539063

Factor a perfect square on the left side:
(t + 2.40625)(t + 2.40625) = 10.602539063

Calculate the square root of the right side: 3.256154029

Break this problem into two subproblems by setting 
(t + 2.40625) equal to 3.256154029 and -3.256154029.

Subproblem 1

t + 2.40625 = 3.256154029 Simplifying t + 2.40625 = 3.256154029 Reorder the terms: 2.40625 + t = 3.256154029 Solving 2.40625 + t = 3.256154029 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2.40625' to each side of the equation. 2.40625 + -2.40625 + t = 3.256154029 + -2.40625 Combine like terms: 2.40625 + -2.40625 = 0.00000 0.00000 + t = 3.256154029 + -2.40625 t = 3.256154029 + -2.40625 Combine like terms: 3.256154029 + -2.40625 = 0.849904029 t = 0.849904029 Simplifying t = 0.849904029

Subproblem 2

t + 2.40625 = -3.256154029 Simplifying t + 2.40625 = -3.256154029 Reorder the terms: 2.40625 + t = -3.256154029 Solving 2.40625 + t = -3.256154029 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2.40625' to each side of the equation. 2.40625 + -2.40625 + t = -3.256154029 + -2.40625 Combine like terms: 2.40625 + -2.40625 = 0.00000 0.00000 + t = -3.256154029 + -2.40625 t = -3.256154029 + -2.40625 Combine like terms: -3.256154029 + -2.40625 = -5.662404029 t = -5.662404029 Simplifying t = -5.662404029

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.849904029, -5.662404029}

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