-16t^2+54t+5=0

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Solution for -16t^2+54t+5=0 equation:


Simplifying
-16t2 + 54t + 5 = 0

Reorder the terms:
5 + 54t + -16t2 = 0

Solving
5 + 54t + -16t2 = 0

Solving for variable 't'.

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

Divide each side by '-16'.
-0.3125 + -3.375t + t2 = 0

Move the constant term to the right:

Add '0.3125' to each side of the equation.
-0.3125 + -3.375t + 0.3125 + t2 = 0 + 0.3125

Reorder the terms:
-0.3125 + 0.3125 + -3.375t + t2 = 0 + 0.3125

Combine like terms: -0.3125 + 0.3125 = 0.0000
0.0000 + -3.375t + t2 = 0 + 0.3125
-3.375t + t2 = 0 + 0.3125

Combine like terms: 0 + 0.3125 = 0.3125
-3.375t + t2 = 0.3125

The t term is -3.375t.  Take half its coefficient (-1.6875).
Square it (2.84765625) and add it to both sides.

Add '2.84765625' to each side of the equation.
-3.375t + 2.84765625 + t2 = 0.3125 + 2.84765625

Reorder the terms:
2.84765625 + -3.375t + t2 = 0.3125 + 2.84765625

Combine like terms: 0.3125 + 2.84765625 = 3.16015625
2.84765625 + -3.375t + t2 = 3.16015625

Factor a perfect square on the left side:
(t + -1.6875)(t + -1.6875) = 3.16015625

Calculate the square root of the right side: 1.777682832

Break this problem into two subproblems by setting 
(t + -1.6875) equal to 1.777682832 and -1.777682832.

Subproblem 1

t + -1.6875 = 1.777682832 Simplifying t + -1.6875 = 1.777682832 Reorder the terms: -1.6875 + t = 1.777682832 Solving -1.6875 + t = 1.777682832 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.6875' to each side of the equation. -1.6875 + 1.6875 + t = 1.777682832 + 1.6875 Combine like terms: -1.6875 + 1.6875 = 0.0000 0.0000 + t = 1.777682832 + 1.6875 t = 1.777682832 + 1.6875 Combine like terms: 1.777682832 + 1.6875 = 3.465182832 t = 3.465182832 Simplifying t = 3.465182832

Subproblem 2

t + -1.6875 = -1.777682832 Simplifying t + -1.6875 = -1.777682832 Reorder the terms: -1.6875 + t = -1.777682832 Solving -1.6875 + t = -1.777682832 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.6875' to each side of the equation. -1.6875 + 1.6875 + t = -1.777682832 + 1.6875 Combine like terms: -1.6875 + 1.6875 = 0.0000 0.0000 + t = -1.777682832 + 1.6875 t = -1.777682832 + 1.6875 Combine like terms: -1.777682832 + 1.6875 = -0.090182832 t = -0.090182832 Simplifying t = -0.090182832

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.465182832, -0.090182832}

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