t=-16t^2+30t+8

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Solution for t=-16t^2+30t+8 equation:


Simplifying
t = -16t2 + 30t + 8

Reorder the terms:
t = 8 + 30t + -16t2

Solving
t = 8 + 30t + -16t2

Solving for variable 't'.

Reorder the terms:
-8 + t + -30t + 16t2 = 8 + 30t + -16t2 + -8 + -30t + 16t2

Combine like terms: t + -30t = -29t
-8 + -29t + 16t2 = 8 + 30t + -16t2 + -8 + -30t + 16t2

Reorder the terms:
-8 + -29t + 16t2 = 8 + -8 + 30t + -30t + -16t2 + 16t2

Combine like terms: 8 + -8 = 0
-8 + -29t + 16t2 = 0 + 30t + -30t + -16t2 + 16t2
-8 + -29t + 16t2 = 30t + -30t + -16t2 + 16t2

Combine like terms: 30t + -30t = 0
-8 + -29t + 16t2 = 0 + -16t2 + 16t2
-8 + -29t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
-8 + -29t + 16t2 = 0

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

Divide each side by '16'.
-0.5 + -1.8125t + t2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -1.8125t + 0.5 + t2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -1.8125t + t2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -1.8125t + t2 = 0 + 0.5
-1.8125t + t2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-1.8125t + t2 = 0.5

The t term is -1.8125t.  Take half its coefficient (-0.90625).
Square it (0.8212890625) and add it to both sides.

Add '0.8212890625' to each side of the equation.
-1.8125t + 0.8212890625 + t2 = 0.5 + 0.8212890625

Reorder the terms:
0.8212890625 + -1.8125t + t2 = 0.5 + 0.8212890625

Combine like terms: 0.5 + 0.8212890625 = 1.3212890625
0.8212890625 + -1.8125t + t2 = 1.3212890625

Factor a perfect square on the left side:
(t + -0.90625)(t + -0.90625) = 1.3212890625

Calculate the square root of the right side: 1.149473385

Break this problem into two subproblems by setting 
(t + -0.90625) equal to 1.149473385 and -1.149473385.

Subproblem 1

t + -0.90625 = 1.149473385 Simplifying t + -0.90625 = 1.149473385 Reorder the terms: -0.90625 + t = 1.149473385 Solving -0.90625 + t = 1.149473385 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.90625' to each side of the equation. -0.90625 + 0.90625 + t = 1.149473385 + 0.90625 Combine like terms: -0.90625 + 0.90625 = 0.00000 0.00000 + t = 1.149473385 + 0.90625 t = 1.149473385 + 0.90625 Combine like terms: 1.149473385 + 0.90625 = 2.055723385 t = 2.055723385 Simplifying t = 2.055723385

Subproblem 2

t + -0.90625 = -1.149473385 Simplifying t + -0.90625 = -1.149473385 Reorder the terms: -0.90625 + t = -1.149473385 Solving -0.90625 + t = -1.149473385 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.90625' to each side of the equation. -0.90625 + 0.90625 + t = -1.149473385 + 0.90625 Combine like terms: -0.90625 + 0.90625 = 0.00000 0.00000 + t = -1.149473385 + 0.90625 t = -1.149473385 + 0.90625 Combine like terms: -1.149473385 + 0.90625 = -0.243223385 t = -0.243223385 Simplifying t = -0.243223385

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.055723385, -0.243223385}

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