5t^2-18t=-120

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Solution for 5t^2-18t=-120 equation:


Simplifying
5t2 + -18t = -120

Reorder the terms:
-18t + 5t2 = -120

Solving
-18t + 5t2 = -120

Solving for variable 't'.

Reorder the terms:
120 + -18t + 5t2 = -120 + 120

Combine like terms: -120 + 120 = 0
120 + -18t + 5t2 = 0

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

Divide each side by '5'.
24 + -3.6t + t2 = 0

Move the constant term to the right:

Add '-24' to each side of the equation.
24 + -3.6t + -24 + t2 = 0 + -24

Reorder the terms:
24 + -24 + -3.6t + t2 = 0 + -24

Combine like terms: 24 + -24 = 0
0 + -3.6t + t2 = 0 + -24
-3.6t + t2 = 0 + -24

Combine like terms: 0 + -24 = -24
-3.6t + t2 = -24

The t term is -3.6t.  Take half its coefficient (-1.8).
Square it (3.24) and add it to both sides.

Add '3.24' to each side of the equation.
-3.6t + 3.24 + t2 = -24 + 3.24

Reorder the terms:
3.24 + -3.6t + t2 = -24 + 3.24

Combine like terms: -24 + 3.24 = -20.76
3.24 + -3.6t + t2 = -20.76

Factor a perfect square on the left side:
(t + -1.8)(t + -1.8) = -20.76

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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