0=-16t^2+t+100

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Solution for 0=-16t^2+t+100 equation:


Simplifying
0 = -16t2 + t + 100

Reorder the terms:
0 = 100 + t + -16t2

Solving
0 = 100 + t + -16t2

Solving for variable 't'.

Combine like terms: 0 + -100 = -100
-100 + -1t + 16t2 = 100 + t + -16t2 + -100 + -1t + 16t2

Reorder the terms:
-100 + -1t + 16t2 = 100 + -100 + t + -1t + -16t2 + 16t2

Combine like terms: 100 + -100 = 0
-100 + -1t + 16t2 = 0 + t + -1t + -16t2 + 16t2
-100 + -1t + 16t2 = t + -1t + -16t2 + 16t2

Combine like terms: t + -1t = 0
-100 + -1t + 16t2 = 0 + -16t2 + 16t2
-100 + -1t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
-100 + -1t + 16t2 = 0

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

Divide each side by '16'.
-6.25 + -0.0625t + t2 = 0

Move the constant term to the right:

Add '6.25' to each side of the equation.
-6.25 + -0.0625t + 6.25 + t2 = 0 + 6.25

Reorder the terms:
-6.25 + 6.25 + -0.0625t + t2 = 0 + 6.25

Combine like terms: -6.25 + 6.25 = 0.00
0.00 + -0.0625t + t2 = 0 + 6.25
-0.0625t + t2 = 0 + 6.25

Combine like terms: 0 + 6.25 = 6.25
-0.0625t + t2 = 6.25

The t term is -0.0625t.  Take half its coefficient (-0.03125).
Square it (0.0009765625) and add it to both sides.

Add '0.0009765625' to each side of the equation.
-0.0625t + 0.0009765625 + t2 = 6.25 + 0.0009765625

Reorder the terms:
0.0009765625 + -0.0625t + t2 = 6.25 + 0.0009765625

Combine like terms: 6.25 + 0.0009765625 = 6.2509765625
0.0009765625 + -0.0625t + t2 = 6.2509765625

Factor a perfect square on the left side:
(t + -0.03125)(t + -0.03125) = 6.2509765625

Calculate the square root of the right side: 2.500195305

Break this problem into two subproblems by setting 
(t + -0.03125) equal to 2.500195305 and -2.500195305.

Subproblem 1

t + -0.03125 = 2.500195305 Simplifying t + -0.03125 = 2.500195305 Reorder the terms: -0.03125 + t = 2.500195305 Solving -0.03125 + t = 2.500195305 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.03125' to each side of the equation. -0.03125 + 0.03125 + t = 2.500195305 + 0.03125 Combine like terms: -0.03125 + 0.03125 = 0.00000 0.00000 + t = 2.500195305 + 0.03125 t = 2.500195305 + 0.03125 Combine like terms: 2.500195305 + 0.03125 = 2.531445305 t = 2.531445305 Simplifying t = 2.531445305

Subproblem 2

t + -0.03125 = -2.500195305 Simplifying t + -0.03125 = -2.500195305 Reorder the terms: -0.03125 + t = -2.500195305 Solving -0.03125 + t = -2.500195305 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '0.03125' to each side of the equation. -0.03125 + 0.03125 + t = -2.500195305 + 0.03125 Combine like terms: -0.03125 + 0.03125 = 0.00000 0.00000 + t = -2.500195305 + 0.03125 t = -2.500195305 + 0.03125 Combine like terms: -2.500195305 + 0.03125 = -2.468945305 t = -2.468945305 Simplifying t = -2.468945305

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.531445305, -2.468945305}

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