-16t^2-13t+170=0

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Solution for -16t^2-13t+170=0 equation:


Simplifying
-16t2 + -13t + 170 = 0

Reorder the terms:
170 + -13t + -16t2 = 0

Solving
170 + -13t + -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'.
-10.625 + 0.8125t + t2 = 0

Move the constant term to the right:

Add '10.625' to each side of the equation.
-10.625 + 0.8125t + 10.625 + t2 = 0 + 10.625

Reorder the terms:
-10.625 + 10.625 + 0.8125t + t2 = 0 + 10.625

Combine like terms: -10.625 + 10.625 = 0.000
0.000 + 0.8125t + t2 = 0 + 10.625
0.8125t + t2 = 0 + 10.625

Combine like terms: 0 + 10.625 = 10.625
0.8125t + t2 = 10.625

The t term is 0.8125t.  Take half its coefficient (0.40625).
Square it (0.1650390625) and add it to both sides.

Add '0.1650390625' to each side of the equation.
0.8125t + 0.1650390625 + t2 = 10.625 + 0.1650390625

Reorder the terms:
0.1650390625 + 0.8125t + t2 = 10.625 + 0.1650390625

Combine like terms: 10.625 + 0.1650390625 = 10.7900390625
0.1650390625 + 0.8125t + t2 = 10.7900390625

Factor a perfect square on the left side:
(t + 0.40625)(t + 0.40625) = 10.7900390625

Calculate the square root of the right side: 3.284819487

Break this problem into two subproblems by setting 
(t + 0.40625) equal to 3.284819487 and -3.284819487.

Subproblem 1

t + 0.40625 = 3.284819487 Simplifying t + 0.40625 = 3.284819487 Reorder the terms: 0.40625 + t = 3.284819487 Solving 0.40625 + t = 3.284819487 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.40625' to each side of the equation. 0.40625 + -0.40625 + t = 3.284819487 + -0.40625 Combine like terms: 0.40625 + -0.40625 = 0.00000 0.00000 + t = 3.284819487 + -0.40625 t = 3.284819487 + -0.40625 Combine like terms: 3.284819487 + -0.40625 = 2.878569487 t = 2.878569487 Simplifying t = 2.878569487

Subproblem 2

t + 0.40625 = -3.284819487 Simplifying t + 0.40625 = -3.284819487 Reorder the terms: 0.40625 + t = -3.284819487 Solving 0.40625 + t = -3.284819487 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.40625' to each side of the equation. 0.40625 + -0.40625 + t = -3.284819487 + -0.40625 Combine like terms: 0.40625 + -0.40625 = 0.00000 0.00000 + t = -3.284819487 + -0.40625 t = -3.284819487 + -0.40625 Combine like terms: -3.284819487 + -0.40625 = -3.691069487 t = -3.691069487 Simplifying t = -3.691069487

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.878569487, -3.691069487}

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