t^2+28t=-29

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Solution for t^2+28t=-29 equation:


Simplifying
t2 + 28t = -29

Reorder the terms:
28t + t2 = -29

Solving
28t + t2 = -29

Solving for variable 't'.

Reorder the terms:
29 + 28t + t2 = -29 + 29

Combine like terms: -29 + 29 = 0
29 + 28t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-29' to each side of the equation.
29 + 28t + -29 + t2 = 0 + -29

Reorder the terms:
29 + -29 + 28t + t2 = 0 + -29

Combine like terms: 29 + -29 = 0
0 + 28t + t2 = 0 + -29
28t + t2 = 0 + -29

Combine like terms: 0 + -29 = -29
28t + t2 = -29

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 = -29 + 196

Reorder the terms:
196 + 28t + t2 = -29 + 196

Combine like terms: -29 + 196 = 167
196 + 28t + t2 = 167

Factor a perfect square on the left side:
(t + 14)(t + 14) = 167

Calculate the square root of the right side: 12.922847983

Break this problem into two subproblems by setting 
(t + 14) equal to 12.922847983 and -12.922847983.

Subproblem 1

t + 14 = 12.922847983 Simplifying t + 14 = 12.922847983 Reorder the terms: 14 + t = 12.922847983 Solving 14 + t = 12.922847983 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 = 12.922847983 + -14 Combine like terms: 14 + -14 = 0 0 + t = 12.922847983 + -14 t = 12.922847983 + -14 Combine like terms: 12.922847983 + -14 = -1.077152017 t = -1.077152017 Simplifying t = -1.077152017

Subproblem 2

t + 14 = -12.922847983 Simplifying t + 14 = -12.922847983 Reorder the terms: 14 + t = -12.922847983 Solving 14 + t = -12.922847983 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 = -12.922847983 + -14 Combine like terms: 14 + -14 = 0 0 + t = -12.922847983 + -14 t = -12.922847983 + -14 Combine like terms: -12.922847983 + -14 = -26.922847983 t = -26.922847983 Simplifying t = -26.922847983

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-1.077152017, -26.922847983}

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