t^2+28t-192=0

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Solution for t^2+28t-192=0 equation:


Simplifying
t2 + 28t + -192 = 0

Reorder the terms:
-192 + 28t + t2 = 0

Solving
-192 + 28t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '192' to each side of the equation.
-192 + 28t + 192 + t2 = 0 + 192

Reorder the terms:
-192 + 192 + 28t + t2 = 0 + 192

Combine like terms: -192 + 192 = 0
0 + 28t + t2 = 0 + 192
28t + t2 = 0 + 192

Combine like terms: 0 + 192 = 192
28t + t2 = 192

The t term is 28t.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28t + 196 + t2 = 192 + 196

Reorder the terms:
196 + 28t + t2 = 192 + 196

Combine like terms: 192 + 196 = 388
196 + 28t + t2 = 388

Factor a perfect square on the left side:
(t + 14)(t + 14) = 388

Calculate the square root of the right side: 19.697715604

Break this problem into two subproblems by setting 
(t + 14) equal to 19.697715604 and -19.697715604.

Subproblem 1

t + 14 = 19.697715604 Simplifying t + 14 = 19.697715604 Reorder the terms: 14 + t = 19.697715604 Solving 14 + t = 19.697715604 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + t = 19.697715604 + -14 Combine like terms: 14 + -14 = 0 0 + t = 19.697715604 + -14 t = 19.697715604 + -14 Combine like terms: 19.697715604 + -14 = 5.697715604 t = 5.697715604 Simplifying t = 5.697715604

Subproblem 2

t + 14 = -19.697715604 Simplifying t + 14 = -19.697715604 Reorder the terms: 14 + t = -19.697715604 Solving 14 + t = -19.697715604 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + t = -19.697715604 + -14 Combine like terms: 14 + -14 = 0 0 + t = -19.697715604 + -14 t = -19.697715604 + -14 Combine like terms: -19.697715604 + -14 = -33.697715604 t = -33.697715604 Simplifying t = -33.697715604

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.697715604, -33.697715604}

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