-16t^2-19t+200=0

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Solution for -16t^2-19t+200=0 equation:


Simplifying
-16t2 + -19t + 200 = 0

Reorder the terms:
200 + -19t + -16t2 = 0

Solving
200 + -19t + -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'.
-12.5 + 1.1875t + t2 = 0

Move the constant term to the right:

Add '12.5' to each side of the equation.
-12.5 + 1.1875t + 12.5 + t2 = 0 + 12.5

Reorder the terms:
-12.5 + 12.5 + 1.1875t + t2 = 0 + 12.5

Combine like terms: -12.5 + 12.5 = 0.0
0.0 + 1.1875t + t2 = 0 + 12.5
1.1875t + t2 = 0 + 12.5

Combine like terms: 0 + 12.5 = 12.5
1.1875t + t2 = 12.5

The t term is 1.1875t.  Take half its coefficient (0.59375).
Square it (0.3525390625) and add it to both sides.

Add '0.3525390625' to each side of the equation.
1.1875t + 0.3525390625 + t2 = 12.5 + 0.3525390625

Reorder the terms:
0.3525390625 + 1.1875t + t2 = 12.5 + 0.3525390625

Combine like terms: 12.5 + 0.3525390625 = 12.8525390625
0.3525390625 + 1.1875t + t2 = 12.8525390625

Factor a perfect square on the left side:
(t + 0.59375)(t + 0.59375) = 12.8525390625

Calculate the square root of the right side: 3.585043802

Break this problem into two subproblems by setting 
(t + 0.59375) equal to 3.585043802 and -3.585043802.

Subproblem 1

t + 0.59375 = 3.585043802 Simplifying t + 0.59375 = 3.585043802 Reorder the terms: 0.59375 + t = 3.585043802 Solving 0.59375 + t = 3.585043802 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.59375' to each side of the equation. 0.59375 + -0.59375 + t = 3.585043802 + -0.59375 Combine like terms: 0.59375 + -0.59375 = 0.00000 0.00000 + t = 3.585043802 + -0.59375 t = 3.585043802 + -0.59375 Combine like terms: 3.585043802 + -0.59375 = 2.991293802 t = 2.991293802 Simplifying t = 2.991293802

Subproblem 2

t + 0.59375 = -3.585043802 Simplifying t + 0.59375 = -3.585043802 Reorder the terms: 0.59375 + t = -3.585043802 Solving 0.59375 + t = -3.585043802 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.59375' to each side of the equation. 0.59375 + -0.59375 + t = -3.585043802 + -0.59375 Combine like terms: 0.59375 + -0.59375 = 0.00000 0.00000 + t = -3.585043802 + -0.59375 t = -3.585043802 + -0.59375 Combine like terms: -3.585043802 + -0.59375 = -4.178793802 t = -4.178793802 Simplifying t = -4.178793802

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.991293802, -4.178793802}

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