16t^2-400t-3=0

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Solution for 16t^2-400t-3=0 equation:


Simplifying
16t2 + -400t + -3 = 0

Reorder the terms:
-3 + -400t + 16t2 = 0

Solving
-3 + -400t + 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'.
-0.1875 + -25t + t2 = 0

Move the constant term to the right:

Add '0.1875' to each side of the equation.
-0.1875 + -25t + 0.1875 + t2 = 0 + 0.1875

Reorder the terms:
-0.1875 + 0.1875 + -25t + t2 = 0 + 0.1875

Combine like terms: -0.1875 + 0.1875 = 0.0000
0.0000 + -25t + t2 = 0 + 0.1875
-25t + t2 = 0 + 0.1875

Combine like terms: 0 + 0.1875 = 0.1875
-25t + t2 = 0.1875

The t term is -25t.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25t + 156.25 + t2 = 0.1875 + 156.25

Reorder the terms:
156.25 + -25t + t2 = 0.1875 + 156.25

Combine like terms: 0.1875 + 156.25 = 156.4375
156.25 + -25t + t2 = 156.4375

Factor a perfect square on the left side:
(t + -12.5)(t + -12.5) = 156.4375

Calculate the square root of the right side: 12.507497751

Break this problem into two subproblems by setting 
(t + -12.5) equal to 12.507497751 and -12.507497751.

Subproblem 1

t + -12.5 = 12.507497751 Simplifying t + -12.5 = 12.507497751 Reorder the terms: -12.5 + t = 12.507497751 Solving -12.5 + t = 12.507497751 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + t = 12.507497751 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + t = 12.507497751 + 12.5 t = 12.507497751 + 12.5 Combine like terms: 12.507497751 + 12.5 = 25.007497751 t = 25.007497751 Simplifying t = 25.007497751

Subproblem 2

t + -12.5 = -12.507497751 Simplifying t + -12.5 = -12.507497751 Reorder the terms: -12.5 + t = -12.507497751 Solving -12.5 + t = -12.507497751 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + t = -12.507497751 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + t = -12.507497751 + 12.5 t = -12.507497751 + 12.5 Combine like terms: -12.507497751 + 12.5 = -0.007497751 t = -0.007497751 Simplifying t = -0.007497751

Solution

The solution to the problem is based on the solutions from the subproblems. t = {25.007497751, -0.007497751}

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