0=-4.9t^2+11t+0.3

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Solution for 0=-4.9t^2+11t+0.3 equation:


Simplifying
0 = -4.9t2 + 11t + 0.3

Reorder the terms:
0 = 0.3 + 11t + -4.9t2

Solving
0 = 0.3 + 11t + -4.9t2

Solving for variable 't'.

Combine like terms: 0 + -0.3 = -0.3
-0.3 + -11t + 4.9t2 = 0.3 + 11t + -4.9t2 + -0.3 + -11t + 4.9t2

Reorder the terms:
-0.3 + -11t + 4.9t2 = 0.3 + -0.3 + 11t + -11t + -4.9t2 + 4.9t2

Combine like terms: 0.3 + -0.3 = 0.0
-0.3 + -11t + 4.9t2 = 0.0 + 11t + -11t + -4.9t2 + 4.9t2
-0.3 + -11t + 4.9t2 = 11t + -11t + -4.9t2 + 4.9t2

Combine like terms: 11t + -11t = 0
-0.3 + -11t + 4.9t2 = 0 + -4.9t2 + 4.9t2
-0.3 + -11t + 4.9t2 = -4.9t2 + 4.9t2

Combine like terms: -4.9t2 + 4.9t2 = 0.0
-0.3 + -11t + 4.9t2 = 0.0

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

Divide each side by '4.9'.
-0.0612244898 + -2.244897959t + t2 = 0

Move the constant term to the right:

Add '0.0612244898' to each side of the equation.
-0.0612244898 + -2.244897959t + 0.0612244898 + t2 = 0 + 0.0612244898

Reorder the terms:
-0.0612244898 + 0.0612244898 + -2.244897959t + t2 = 0 + 0.0612244898

Combine like terms: -0.0612244898 + 0.0612244898 = 0.0000000000
0.0000000000 + -2.244897959t + t2 = 0 + 0.0612244898
-2.244897959t + t2 = 0 + 0.0612244898

Combine like terms: 0 + 0.0612244898 = 0.0612244898
-2.244897959t + t2 = 0.0612244898

The t term is -2.244897959t.  Take half its coefficient (-1.12244898).
Square it (1.259891713) and add it to both sides.

Add '1.259891713' to each side of the equation.
-2.244897959t + 1.259891713 + t2 = 0.0612244898 + 1.259891713

Reorder the terms:
1.259891713 + -2.244897959t + t2 = 0.0612244898 + 1.259891713

Combine like terms: 0.0612244898 + 1.259891713 = 1.3211162028
1.259891713 + -2.244897959t + t2 = 1.3211162028

Factor a perfect square on the left side:
(t + -1.12244898)(t + -1.12244898) = 1.3211162028

Calculate the square root of the right side: 1.149398192

Break this problem into two subproblems by setting 
(t + -1.12244898) equal to 1.149398192 and -1.149398192.

Subproblem 1

t + -1.12244898 = 1.149398192 Simplifying t + -1.12244898 = 1.149398192 Reorder the terms: -1.12244898 + t = 1.149398192 Solving -1.12244898 + t = 1.149398192 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.12244898' to each side of the equation. -1.12244898 + 1.12244898 + t = 1.149398192 + 1.12244898 Combine like terms: -1.12244898 + 1.12244898 = 0.00000000 0.00000000 + t = 1.149398192 + 1.12244898 t = 1.149398192 + 1.12244898 Combine like terms: 1.149398192 + 1.12244898 = 2.271847172 t = 2.271847172 Simplifying t = 2.271847172

Subproblem 2

t + -1.12244898 = -1.149398192 Simplifying t + -1.12244898 = -1.149398192 Reorder the terms: -1.12244898 + t = -1.149398192 Solving -1.12244898 + t = -1.149398192 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.12244898' to each side of the equation. -1.12244898 + 1.12244898 + t = -1.149398192 + 1.12244898 Combine like terms: -1.12244898 + 1.12244898 = 0.00000000 0.00000000 + t = -1.149398192 + 1.12244898 t = -1.149398192 + 1.12244898 Combine like terms: -1.149398192 + 1.12244898 = -0.026949212 t = -0.026949212 Simplifying t = -0.026949212

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.271847172, -0.026949212}

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