15=-4.9t^2+17t-14.8

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Solution for 15=-4.9t^2+17t-14.8 equation:


Simplifying
15 = -4.9t2 + 17t + -14.8

Reorder the terms:
15 = -14.8 + 17t + -4.9t2

Solving
15 = -14.8 + 17t + -4.9t2

Solving for variable 't'.

Combine like terms: 15 + 14.8 = 29.8
29.8 + -17t + 4.9t2 = -14.8 + 17t + -4.9t2 + 14.8 + -17t + 4.9t2

Reorder the terms:
29.8 + -17t + 4.9t2 = -14.8 + 14.8 + 17t + -17t + -4.9t2 + 4.9t2

Combine like terms: -14.8 + 14.8 = 0.0
29.8 + -17t + 4.9t2 = 0.0 + 17t + -17t + -4.9t2 + 4.9t2
29.8 + -17t + 4.9t2 = 17t + -17t + -4.9t2 + 4.9t2

Combine like terms: 17t + -17t = 0
29.8 + -17t + 4.9t2 = 0 + -4.9t2 + 4.9t2
29.8 + -17t + 4.9t2 = -4.9t2 + 4.9t2

Combine like terms: -4.9t2 + 4.9t2 = 0.0
29.8 + -17t + 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'.
6.081632653 + -3.469387755t + t2 = 0

Move the constant term to the right:

Add '-6.081632653' to each side of the equation.
6.081632653 + -3.469387755t + -6.081632653 + t2 = 0 + -6.081632653

Reorder the terms:
6.081632653 + -6.081632653 + -3.469387755t + t2 = 0 + -6.081632653

Combine like terms: 6.081632653 + -6.081632653 = 0.000000000
0.000000000 + -3.469387755t + t2 = 0 + -6.081632653
-3.469387755t + t2 = 0 + -6.081632653

Combine like terms: 0 + -6.081632653 = -6.081632653
-3.469387755t + t2 = -6.081632653

The t term is -3.469387755t.  Take half its coefficient (-1.734693878).
Square it (3.009162850) and add it to both sides.

Add '3.009162850' to each side of the equation.
-3.469387755t + 3.009162850 + t2 = -6.081632653 + 3.009162850

Reorder the terms:
3.009162850 + -3.469387755t + t2 = -6.081632653 + 3.009162850

Combine like terms: -6.081632653 + 3.009162850 = -3.072469803
3.009162850 + -3.469387755t + t2 = -3.072469803

Factor a perfect square on the left side:
(t + -1.734693878)(t + -1.734693878) = -3.072469803

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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