4.9t^2-11t-63=0

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Solution for 4.9t^2-11t-63=0 equation:


Simplifying
4.9t2 + -11t + -63 = 0

Reorder the terms:
-63 + -11t + 4.9t2 = 0

Solving
-63 + -11t + 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'.
-12.85714286 + -2.244897959t + t2 = 0

Move the constant term to the right:

Add '12.85714286' to each side of the equation.
-12.85714286 + -2.244897959t + 12.85714286 + t2 = 0 + 12.85714286

Reorder the terms:
-12.85714286 + 12.85714286 + -2.244897959t + t2 = 0 + 12.85714286

Combine like terms: -12.85714286 + 12.85714286 = 0.00000000
0.00000000 + -2.244897959t + t2 = 0 + 12.85714286
-2.244897959t + t2 = 0 + 12.85714286

Combine like terms: 0 + 12.85714286 = 12.85714286
-2.244897959t + t2 = 12.85714286

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 = 12.85714286 + 1.259891713

Reorder the terms:
1.259891713 + -2.244897959t + t2 = 12.85714286 + 1.259891713

Combine like terms: 12.85714286 + 1.259891713 = 14.117034573
1.259891713 + -2.244897959t + t2 = 14.117034573

Factor a perfect square on the left side:
(t + -1.12244898)(t + -1.12244898) = 14.117034573

Calculate the square root of the right side: 3.757264241

Break this problem into two subproblems by setting 
(t + -1.12244898) equal to 3.757264241 and -3.757264241.

Subproblem 1

t + -1.12244898 = 3.757264241 Simplifying t + -1.12244898 = 3.757264241 Reorder the terms: -1.12244898 + t = 3.757264241 Solving -1.12244898 + t = 3.757264241 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 = 3.757264241 + 1.12244898 Combine like terms: -1.12244898 + 1.12244898 = 0.00000000 0.00000000 + t = 3.757264241 + 1.12244898 t = 3.757264241 + 1.12244898 Combine like terms: 3.757264241 + 1.12244898 = 4.879713221 t = 4.879713221 Simplifying t = 4.879713221

Subproblem 2

t + -1.12244898 = -3.757264241 Simplifying t + -1.12244898 = -3.757264241 Reorder the terms: -1.12244898 + t = -3.757264241 Solving -1.12244898 + t = -3.757264241 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 = -3.757264241 + 1.12244898 Combine like terms: -1.12244898 + 1.12244898 = 0.00000000 0.00000000 + t = -3.757264241 + 1.12244898 t = -3.757264241 + 1.12244898 Combine like terms: -3.757264241 + 1.12244898 = -2.634815261 t = -2.634815261 Simplifying t = -2.634815261

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.879713221, -2.634815261}

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