5t^2+3t=-15-9

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Solution for 5t^2+3t=-15-9 equation:


Simplifying
5t2 + 3t = -15 + -9

Reorder the terms:
3t + 5t2 = -15 + -9

Combine like terms: -15 + -9 = -24
3t + 5t2 = -24

Solving
3t + 5t2 = -24

Solving for variable 't'.

Reorder the terms:
24 + 3t + 5t2 = -24 + 24

Combine like terms: -24 + 24 = 0
24 + 3t + 5t2 = 0

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

Divide each side by '5'.
4.8 + 0.6t + t2 = 0

Move the constant term to the right:

Add '-4.8' to each side of the equation.
4.8 + 0.6t + -4.8 + t2 = 0 + -4.8

Reorder the terms:
4.8 + -4.8 + 0.6t + t2 = 0 + -4.8

Combine like terms: 4.8 + -4.8 = 0.0
0.0 + 0.6t + t2 = 0 + -4.8
0.6t + t2 = 0 + -4.8

Combine like terms: 0 + -4.8 = -4.8
0.6t + t2 = -4.8

The t term is 0.6t.  Take half its coefficient (0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
0.6t + 0.09 + t2 = -4.8 + 0.09

Reorder the terms:
0.09 + 0.6t + t2 = -4.8 + 0.09

Combine like terms: -4.8 + 0.09 = -4.71
0.09 + 0.6t + t2 = -4.71

Factor a perfect square on the left side:
(t + 0.3)(t + 0.3) = -4.71

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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