20t^2+t+1=0

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Solution for 20t^2+t+1=0 equation:


Simplifying
20t2 + t + 1 = 0

Reorder the terms:
1 + t + 20t2 = 0

Solving
1 + t + 20t2 = 0

Solving for variable 't'.

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

Divide each side by '20'.
0.05 + 0.05t + t2 = 0

Move the constant term to the right:

Add '-0.05' to each side of the equation.
0.05 + 0.05t + -0.05 + t2 = 0 + -0.05

Reorder the terms:
0.05 + -0.05 + 0.05t + t2 = 0 + -0.05

Combine like terms: 0.05 + -0.05 = 0.00
0.00 + 0.05t + t2 = 0 + -0.05
0.05t + t2 = 0 + -0.05

Combine like terms: 0 + -0.05 = -0.05
0.05t + t2 = -0.05

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.
0.05t + 0.25 + t2 = -0.05 + 0.25

Reorder the terms:
0.25 + 0.05t + t2 = -0.05 + 0.25

Combine like terms: -0.05 + 0.25 = 0.2
0.25 + 0.05t + t2 = 0.2

Factor a perfect square on the left side:
(t + 0.5)(t + 0.5) = 0.2

Calculate the square root of the right side: 0.447213596

Break this problem into two subproblems by setting 
(t + 0.5) equal to 0.447213596 and -0.447213596.

Subproblem 1

t + 0.5 = 0.447213596 Simplifying t + 0.5 = 0.447213596 Reorder the terms: 0.5 + t = 0.447213596 Solving 0.5 + t = 0.447213596 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 = 0.447213596 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + t = 0.447213596 + -0.5 t = 0.447213596 + -0.5 Combine like terms: 0.447213596 + -0.5 = -0.052786404 t = -0.052786404 Simplifying t = -0.052786404

Subproblem 2

t + 0.5 = -0.447213596 Simplifying t + 0.5 = -0.447213596 Reorder the terms: 0.5 + t = -0.447213596 Solving 0.5 + t = -0.447213596 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 = -0.447213596 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + t = -0.447213596 + -0.5 t = -0.447213596 + -0.5 Combine like terms: -0.447213596 + -0.5 = -0.947213596 t = -0.947213596 Simplifying t = -0.947213596

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-0.052786404, -0.947213596}

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