80t-16t^2+35=0

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Solution for 80t-16t^2+35=0 equation:


Simplifying
80t + -16t2 + 35 = 0

Reorder the terms:
35 + 80t + -16t2 = 0

Solving
35 + 80t + -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'.
-2.1875 + -5t + t2 = 0

Move the constant term to the right:

Add '2.1875' to each side of the equation.
-2.1875 + -5t + 2.1875 + t2 = 0 + 2.1875

Reorder the terms:
-2.1875 + 2.1875 + -5t + t2 = 0 + 2.1875

Combine like terms: -2.1875 + 2.1875 = 0.0000
0.0000 + -5t + t2 = 0 + 2.1875
-5t + t2 = 0 + 2.1875

Combine like terms: 0 + 2.1875 = 2.1875
-5t + t2 = 2.1875

The t term is -5t.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5t + 6.25 + t2 = 2.1875 + 6.25

Reorder the terms:
6.25 + -5t + t2 = 2.1875 + 6.25

Combine like terms: 2.1875 + 6.25 = 8.4375
6.25 + -5t + t2 = 8.4375

Factor a perfect square on the left side:
(t + -2.5)(t + -2.5) = 8.4375

Calculate the square root of the right side: 2.90473751

Break this problem into two subproblems by setting 
(t + -2.5) equal to 2.90473751 and -2.90473751.

Subproblem 1

t + -2.5 = 2.90473751 Simplifying t + -2.5 = 2.90473751 Reorder the terms: -2.5 + t = 2.90473751 Solving -2.5 + t = 2.90473751 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + t = 2.90473751 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + t = 2.90473751 + 2.5 t = 2.90473751 + 2.5 Combine like terms: 2.90473751 + 2.5 = 5.40473751 t = 5.40473751 Simplifying t = 5.40473751

Subproblem 2

t + -2.5 = -2.90473751 Simplifying t + -2.5 = -2.90473751 Reorder the terms: -2.5 + t = -2.90473751 Solving -2.5 + t = -2.90473751 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + t = -2.90473751 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + t = -2.90473751 + 2.5 t = -2.90473751 + 2.5 Combine like terms: -2.90473751 + 2.5 = -0.40473751 t = -0.40473751 Simplifying t = -0.40473751

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.40473751, -0.40473751}

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