-4.9t^2+22.1t+22.1=0

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Solution for -4.9t^2+22.1t+22.1=0 equation:


Simplifying
-4.9t2 + 22.1t + 22.1 = 0

Reorder the terms:
22.1 + 22.1t + -4.9t2 = 0

Solving
22.1 + 22.1t + -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'.
-4.510204082 + -4.510204082t + t2 = 0

Move the constant term to the right:

Add '4.510204082' to each side of the equation.
-4.510204082 + -4.510204082t + 4.510204082 + t2 = 0 + 4.510204082

Reorder the terms:
-4.510204082 + 4.510204082 + -4.510204082t + t2 = 0 + 4.510204082

Combine like terms: -4.510204082 + 4.510204082 = 0.000000000
0.000000000 + -4.510204082t + t2 = 0 + 4.510204082
-4.510204082t + t2 = 0 + 4.510204082

Combine like terms: 0 + 4.510204082 = 4.510204082
-4.510204082t + t2 = 4.510204082

The t term is -4.510204082t.  Take half its coefficient (-2.255102041).
Square it (5.085485215) and add it to both sides.

Add '5.085485215' to each side of the equation.
-4.510204082t + 5.085485215 + t2 = 4.510204082 + 5.085485215

Reorder the terms:
5.085485215 + -4.510204082t + t2 = 4.510204082 + 5.085485215

Combine like terms: 4.510204082 + 5.085485215 = 9.595689297
5.085485215 + -4.510204082t + t2 = 9.595689297

Factor a perfect square on the left side:
(t + -2.255102041)(t + -2.255102041) = 9.595689297

Calculate the square root of the right side: 3.097690962

Break this problem into two subproblems by setting 
(t + -2.255102041) equal to 3.097690962 and -3.097690962.

Subproblem 1

t + -2.255102041 = 3.097690962 Simplifying t + -2.255102041 = 3.097690962 Reorder the terms: -2.255102041 + t = 3.097690962 Solving -2.255102041 + t = 3.097690962 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.255102041' to each side of the equation. -2.255102041 + 2.255102041 + t = 3.097690962 + 2.255102041 Combine like terms: -2.255102041 + 2.255102041 = 0.000000000 0.000000000 + t = 3.097690962 + 2.255102041 t = 3.097690962 + 2.255102041 Combine like terms: 3.097690962 + 2.255102041 = 5.352793003 t = 5.352793003 Simplifying t = 5.352793003

Subproblem 2

t + -2.255102041 = -3.097690962 Simplifying t + -2.255102041 = -3.097690962 Reorder the terms: -2.255102041 + t = -3.097690962 Solving -2.255102041 + t = -3.097690962 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.255102041' to each side of the equation. -2.255102041 + 2.255102041 + t = -3.097690962 + 2.255102041 Combine like terms: -2.255102041 + 2.255102041 = 0.000000000 0.000000000 + t = -3.097690962 + 2.255102041 t = -3.097690962 + 2.255102041 Combine like terms: -3.097690962 + 2.255102041 = -0.842588921 t = -0.842588921 Simplifying t = -0.842588921

Solution

The solution to the problem is based on the solutions from the subproblems. t = {5.352793003, -0.842588921}

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