t=t^2-12.5

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Solution for t=t^2-12.5 equation:


Simplifying
t = t2 + -12.5

Reorder the terms:
t = -12.5 + t2

Solving
t = -12.5 + t2

Solving for variable 't'.

Reorder the terms:
12.5 + t + -1t2 = -12.5 + t2 + 12.5 + -1t2

Reorder the terms:
12.5 + t + -1t2 = -12.5 + 12.5 + t2 + -1t2

Combine like terms: -12.5 + 12.5 = 0.0
12.5 + t + -1t2 = 0.0 + t2 + -1t2
12.5 + t + -1t2 = t2 + -1t2

Combine like terms: t2 + -1t2 = 0
12.5 + t + -1t2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-12.5 + -1t + t2 = 0

Move the constant term to the right:

Add '12.5' to each side of the equation.
-12.5 + -1t + 12.5 + t2 = 0 + 12.5

Reorder the terms:
-12.5 + 12.5 + -1t + t2 = 0 + 12.5

Combine like terms: -12.5 + 12.5 = 0.0
0.0 + -1t + t2 = 0 + 12.5
-1t + t2 = 0 + 12.5

Combine like terms: 0 + 12.5 = 12.5
-1t + t2 = 12.5

The t term is t.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1t + 0.25 + t2 = 12.5 + 0.25

Reorder the terms:
0.25 + -1t + t2 = 12.5 + 0.25

Combine like terms: 12.5 + 0.25 = 12.75
0.25 + -1t + t2 = 12.75

Factor a perfect square on the left side:
(t + 0.5)(t + 0.5) = 12.75

Calculate the square root of the right side: 3.570714214

Break this problem into two subproblems by setting 
(t + 0.5) equal to 3.570714214 and -3.570714214.

Subproblem 1

t + 0.5 = 3.570714214 Simplifying t + 0.5 = 3.570714214 Reorder the terms: 0.5 + t = 3.570714214 Solving 0.5 + t = 3.570714214 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + t = 3.570714214 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + t = 3.570714214 + -0.5 t = 3.570714214 + -0.5 Combine like terms: 3.570714214 + -0.5 = 3.070714214 t = 3.070714214 Simplifying t = 3.070714214

Subproblem 2

t + 0.5 = -3.570714214 Simplifying t + 0.5 = -3.570714214 Reorder the terms: 0.5 + t = -3.570714214 Solving 0.5 + t = -3.570714214 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + t = -3.570714214 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + t = -3.570714214 + -0.5 t = -3.570714214 + -0.5 Combine like terms: -3.570714214 + -0.5 = -4.070714214 t = -4.070714214 Simplifying t = -4.070714214

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.070714214, -4.070714214}

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