16t^2+75t+80=

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Solution for 16t^2+75t+80= equation:


Simplifying
16t2 + 75t + 80 = 0

Reorder the terms:
80 + 75t + 16t2 = 0

Solving
80 + 75t + 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'.
5 + 4.6875t + t2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 4.6875t + -5 + t2 = 0 + -5

Reorder the terms:
5 + -5 + 4.6875t + t2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 4.6875t + t2 = 0 + -5
4.6875t + t2 = 0 + -5

Combine like terms: 0 + -5 = -5
4.6875t + t2 = -5

The t term is 4.6875t.  Take half its coefficient (2.34375).
Square it (5.493164063) and add it to both sides.

Add '5.493164063' to each side of the equation.
4.6875t + 5.493164063 + t2 = -5 + 5.493164063

Reorder the terms:
5.493164063 + 4.6875t + t2 = -5 + 5.493164063

Combine like terms: -5 + 5.493164063 = 0.493164063
5.493164063 + 4.6875t + t2 = 0.493164063

Factor a perfect square on the left side:
(t + 2.34375)(t + 2.34375) = 0.493164063

Calculate the square root of the right side: 0.702256408

Break this problem into two subproblems by setting 
(t + 2.34375) equal to 0.702256408 and -0.702256408.

Subproblem 1

t + 2.34375 = 0.702256408 Simplifying t + 2.34375 = 0.702256408 Reorder the terms: 2.34375 + t = 0.702256408 Solving 2.34375 + t = 0.702256408 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2.34375' to each side of the equation. 2.34375 + -2.34375 + t = 0.702256408 + -2.34375 Combine like terms: 2.34375 + -2.34375 = 0.00000 0.00000 + t = 0.702256408 + -2.34375 t = 0.702256408 + -2.34375 Combine like terms: 0.702256408 + -2.34375 = -1.641493592 t = -1.641493592 Simplifying t = -1.641493592

Subproblem 2

t + 2.34375 = -0.702256408 Simplifying t + 2.34375 = -0.702256408 Reorder the terms: 2.34375 + t = -0.702256408 Solving 2.34375 + t = -0.702256408 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-2.34375' to each side of the equation. 2.34375 + -2.34375 + t = -0.702256408 + -2.34375 Combine like terms: 2.34375 + -2.34375 = 0.00000 0.00000 + t = -0.702256408 + -2.34375 t = -0.702256408 + -2.34375 Combine like terms: -0.702256408 + -2.34375 = -3.046006408 t = -3.046006408 Simplifying t = -3.046006408

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-1.641493592, -3.046006408}

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