-4.9t^2+45.083t-18.3=0

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Solution for -4.9t^2+45.083t-18.3=0 equation:


Simplifying
-4.9t2 + 45.083t + -18.3 = 0

Reorder the terms:
-18.3 + 45.083t + -4.9t2 = 0

Solving
-18.3 + 45.083t + -4.9t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
3.734693878 + -9.200612245t + t2 = 0

Move the constant term to the right:

Add '-3.734693878' to each side of the equation.
3.734693878 + -9.200612245t + -3.734693878 + t2 = 0 + -3.734693878

Reorder the terms:
3.734693878 + -3.734693878 + -9.200612245t + t2 = 0 + -3.734693878

Combine like terms: 3.734693878 + -3.734693878 = 0.000000000
0.000000000 + -9.200612245t + t2 = 0 + -3.734693878
-9.200612245t + t2 = 0 + -3.734693878

Combine like terms: 0 + -3.734693878 = -3.734693878
-9.200612245t + t2 = -3.734693878

The t term is -9.200612245t.  Take half its coefficient (-4.600306123).
Square it (21.16281643) and add it to both sides.

Add '21.16281643' to each side of the equation.
-9.200612245t + 21.16281643 + t2 = -3.734693878 + 21.16281643

Reorder the terms:
21.16281643 + -9.200612245t + t2 = -3.734693878 + 21.16281643

Combine like terms: -3.734693878 + 21.16281643 = 17.428122552
21.16281643 + -9.200612245t + t2 = 17.428122552

Factor a perfect square on the left side:
(t + -4.600306123)(t + -4.600306123) = 17.428122552

Calculate the square root of the right side: 4.174700295

Break this problem into two subproblems by setting 
(t + -4.600306123) equal to 4.174700295 and -4.174700295.

Subproblem 1

t + -4.600306123 = 4.174700295 Simplifying t + -4.600306123 = 4.174700295 Reorder the terms: -4.600306123 + t = 4.174700295 Solving -4.600306123 + t = 4.174700295 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4.600306123' to each side of the equation. -4.600306123 + 4.600306123 + t = 4.174700295 + 4.600306123 Combine like terms: -4.600306123 + 4.600306123 = 0.000000000 0.000000000 + t = 4.174700295 + 4.600306123 t = 4.174700295 + 4.600306123 Combine like terms: 4.174700295 + 4.600306123 = 8.775006418 t = 8.775006418 Simplifying t = 8.775006418

Subproblem 2

t + -4.600306123 = -4.174700295 Simplifying t + -4.600306123 = -4.174700295 Reorder the terms: -4.600306123 + t = -4.174700295 Solving -4.600306123 + t = -4.174700295 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '4.600306123' to each side of the equation. -4.600306123 + 4.600306123 + t = -4.174700295 + 4.600306123 Combine like terms: -4.600306123 + 4.600306123 = 0.000000000 0.000000000 + t = -4.174700295 + 4.600306123 t = -4.174700295 + 4.600306123 Combine like terms: -4.174700295 + 4.600306123 = 0.425605828 t = 0.425605828 Simplifying t = 0.425605828

Solution

The solution to the problem is based on the solutions from the subproblems. t = {8.775006418, 0.425605828}

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