0=-4.9t^2-12t-30

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Solution for 0=-4.9t^2-12t-30 equation:


Simplifying
0 = -4.9t2 + -12t + -30

Reorder the terms:
0 = -30 + -12t + -4.9t2

Solving
0 = -30 + -12t + -4.9t2

Solving for variable 't'.

Combine like terms: 0 + 30 = 30
30 + 12t + 4.9t2 = -30 + -12t + -4.9t2 + 30 + 12t + 4.9t2

Reorder the terms:
30 + 12t + 4.9t2 = -30 + 30 + -12t + 12t + -4.9t2 + 4.9t2

Combine like terms: -30 + 30 = 0
30 + 12t + 4.9t2 = 0 + -12t + 12t + -4.9t2 + 4.9t2
30 + 12t + 4.9t2 = -12t + 12t + -4.9t2 + 4.9t2

Combine like terms: -12t + 12t = 0
30 + 12t + 4.9t2 = 0 + -4.9t2 + 4.9t2
30 + 12t + 4.9t2 = -4.9t2 + 4.9t2

Combine like terms: -4.9t2 + 4.9t2 = 0.0
30 + 12t + 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'.
6.12244898 + 2.448979592t + t2 = 0

Move the constant term to the right:

Add '-6.12244898' to each side of the equation.
6.12244898 + 2.448979592t + -6.12244898 + t2 = 0 + -6.12244898

Reorder the terms:
6.12244898 + -6.12244898 + 2.448979592t + t2 = 0 + -6.12244898

Combine like terms: 6.12244898 + -6.12244898 = 0.00000000
0.00000000 + 2.448979592t + t2 = 0 + -6.12244898
2.448979592t + t2 = 0 + -6.12244898

Combine like terms: 0 + -6.12244898 = -6.12244898
2.448979592t + t2 = -6.12244898

The t term is 2.448979592t.  Take half its coefficient (1.224489796).
Square it (1.499375261) and add it to both sides.

Add '1.499375261' to each side of the equation.
2.448979592t + 1.499375261 + t2 = -6.12244898 + 1.499375261

Reorder the terms:
1.499375261 + 2.448979592t + t2 = -6.12244898 + 1.499375261

Combine like terms: -6.12244898 + 1.499375261 = -4.623073719
1.499375261 + 2.448979592t + t2 = -4.623073719

Factor a perfect square on the left side:
(t + 1.224489796)(t + 1.224489796) = -4.623073719

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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