-s^2+3s-28=0

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Solution for -s^2+3s-28=0 equation:


Simplifying
-1s2 + 3s + -28 = 0

Reorder the terms:
-28 + 3s + -1s2 = 0

Solving
-28 + 3s + -1s2 = 0

Solving for variable 's'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
28 + -3s + s2 = 0

Move the constant term to the right:

Add '-28' to each side of the equation.
28 + -3s + -28 + s2 = 0 + -28

Reorder the terms:
28 + -28 + -3s + s2 = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -3s + s2 = 0 + -28
-3s + s2 = 0 + -28

Combine like terms: 0 + -28 = -28
-3s + s2 = -28

The s term is -3s.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3s + 2.25 + s2 = -28 + 2.25

Reorder the terms:
2.25 + -3s + s2 = -28 + 2.25

Combine like terms: -28 + 2.25 = -25.75
2.25 + -3s + s2 = -25.75

Factor a perfect square on the left side:
(s + -1.5)(s + -1.5) = -25.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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