7t-0.83t^2-25=0

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Solution for 7t-0.83t^2-25=0 equation:


Simplifying
7t + -0.83t2 + -25 = 0

Reorder the terms:
-25 + 7t + -0.83t2 = 0

Solving
-25 + 7t + -0.83t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-0.83 the coefficient of the squared term: 

Divide each side by '-0.83'.
30.12048193 + -8.43373494t + t2 = 0

Move the constant term to the right:

Add '-30.12048193' to each side of the equation.
30.12048193 + -8.43373494t + -30.12048193 + t2 = 0 + -30.12048193

Reorder the terms:
30.12048193 + -30.12048193 + -8.43373494t + t2 = 0 + -30.12048193

Combine like terms: 30.12048193 + -30.12048193 = 0.00000000
0.00000000 + -8.43373494t + t2 = 0 + -30.12048193
-8.43373494t + t2 = 0 + -30.12048193

Combine like terms: 0 + -30.12048193 = -30.12048193
-8.43373494t + t2 = -30.12048193

The t term is -8.43373494t.  Take half its coefficient (-4.21686747).
Square it (17.78197126) and add it to both sides.

Add '17.78197126' to each side of the equation.
-8.43373494t + 17.78197126 + t2 = -30.12048193 + 17.78197126

Reorder the terms:
17.78197126 + -8.43373494t + t2 = -30.12048193 + 17.78197126

Combine like terms: -30.12048193 + 17.78197126 = -12.33851067
17.78197126 + -8.43373494t + t2 = -12.33851067

Factor a perfect square on the left side:
(t + -4.21686747)(t + -4.21686747) = -12.33851067

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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