2=-1.6t-4.9t^2

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Solution for 2=-1.6t-4.9t^2 equation:


Simplifying
2 = -1.6t + -4.9t2

Solving
2 = -1.6t + -4.9t2

Solving for variable 't'.

Reorder the terms:
2 + 1.6t + 4.9t2 = -1.6t + 1.6t + -4.9t2 + 4.9t2

Combine like terms: -1.6t + 1.6t = 0.0
2 + 1.6t + 4.9t2 = 0.0 + -4.9t2 + 4.9t2
2 + 1.6t + 4.9t2 = -4.9t2 + 4.9t2

Combine like terms: -4.9t2 + 4.9t2 = 0.0
2 + 1.6t + 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'.
0.4081632653 + 0.3265306122t + t2 = 0

Move the constant term to the right:

Add '-0.4081632653' to each side of the equation.
0.4081632653 + 0.3265306122t + -0.4081632653 + t2 = 0 + -0.4081632653

Reorder the terms:
0.4081632653 + -0.4081632653 + 0.3265306122t + t2 = 0 + -0.4081632653

Combine like terms: 0.4081632653 + -0.4081632653 = 0.0000000000
0.0000000000 + 0.3265306122t + t2 = 0 + -0.4081632653
0.3265306122t + t2 = 0 + -0.4081632653

Combine like terms: 0 + -0.4081632653 = -0.4081632653
0.3265306122t + t2 = -0.4081632653

The t term is 0.3265306122t.  Take half its coefficient (0.1632653061).
Square it (0.02665556018) and add it to both sides.

Add '0.02665556018' to each side of the equation.
0.3265306122t + 0.02665556018 + t2 = -0.4081632653 + 0.02665556018

Reorder the terms:
0.02665556018 + 0.3265306122t + t2 = -0.4081632653 + 0.02665556018

Combine like terms: -0.4081632653 + 0.02665556018 = -0.38150770512
0.02665556018 + 0.3265306122t + t2 = -0.38150770512

Factor a perfect square on the left side:
(t + 0.1632653061)(t + 0.1632653061) = -0.38150770512

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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