-5t^2+12t-20=0

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Solution for -5t^2+12t-20=0 equation:


Simplifying
-5t2 + 12t + -20 = 0

Reorder the terms:
-20 + 12t + -5t2 = 0

Solving
-20 + 12t + -5t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
4 + -2.4t + t2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -2.4t + -4 + t2 = 0 + -4

Reorder the terms:
4 + -4 + -2.4t + t2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -2.4t + t2 = 0 + -4
-2.4t + t2 = 0 + -4

Combine like terms: 0 + -4 = -4
-2.4t + t2 = -4

The t term is -2.4t.  Take half its coefficient (-1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
-2.4t + 1.44 + t2 = -4 + 1.44

Reorder the terms:
1.44 + -2.4t + t2 = -4 + 1.44

Combine like terms: -4 + 1.44 = -2.56
1.44 + -2.4t + t2 = -2.56

Factor a perfect square on the left side:
(t + -1.2)(t + -1.2) = -2.56

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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