t^2+20t-94.10=0

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Solution for t^2+20t-94.10=0 equation:


Simplifying
t2 + 20t + -94.10 = 0

Reorder the terms:
-94.10 + 20t + t2 = 0

Solving
-94.10 + 20t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '94.10' to each side of the equation.
-94.10 + 20t + 94.10 + t2 = 0 + 94.10

Reorder the terms:
-94.10 + 94.10 + 20t + t2 = 0 + 94.10

Combine like terms: -94.10 + 94.10 = 0.00
0.00 + 20t + t2 = 0 + 94.10
20t + t2 = 0 + 94.10

Combine like terms: 0 + 94.10 = 94.1
20t + t2 = 94.1

The t term is 20t.  Take half its coefficient (10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
20t + 100 + t2 = 94.1 + 100

Reorder the terms:
100 + 20t + t2 = 94.1 + 100

Combine like terms: 94.1 + 100 = 194.1
100 + 20t + t2 = 194.1

Factor a perfect square on the left side:
(t + 10)(t + 10) = 194.1

Calculate the square root of the right side: 13.931977605

Break this problem into two subproblems by setting 
(t + 10) equal to 13.931977605 and -13.931977605.

Subproblem 1

t + 10 = 13.931977605 Simplifying t + 10 = 13.931977605 Reorder the terms: 10 + t = 13.931977605 Solving 10 + t = 13.931977605 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + t = 13.931977605 + -10 Combine like terms: 10 + -10 = 0 0 + t = 13.931977605 + -10 t = 13.931977605 + -10 Combine like terms: 13.931977605 + -10 = 3.931977605 t = 3.931977605 Simplifying t = 3.931977605

Subproblem 2

t + 10 = -13.931977605 Simplifying t + 10 = -13.931977605 Reorder the terms: 10 + t = -13.931977605 Solving 10 + t = -13.931977605 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + t = -13.931977605 + -10 Combine like terms: 10 + -10 = 0 0 + t = -13.931977605 + -10 t = -13.931977605 + -10 Combine like terms: -13.931977605 + -10 = -23.931977605 t = -23.931977605 Simplifying t = -23.931977605

Solution

The solution to the problem is based on the solutions from the subproblems. t = {3.931977605, -23.931977605}

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