(-9s^2+8s)+(5s^2-3s-2)=

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Solution for (-9s^2+8s)+(5s^2-3s-2)= equation:


Simplifying
(-9s2 + 8s) + (5s2 + -3s + -2) = 0

Reorder the terms:
(8s + -9s2) + (5s2 + -3s + -2) = 0

Remove parenthesis around (8s + -9s2)
8s + -9s2 + (5s2 + -3s + -2) = 0

Reorder the terms:
8s + -9s2 + (-2 + -3s + 5s2) = 0

Remove parenthesis around (-2 + -3s + 5s2)
8s + -9s2 + -2 + -3s + 5s2 = 0

Reorder the terms:
-2 + 8s + -3s + -9s2 + 5s2 = 0

Combine like terms: 8s + -3s = 5s
-2 + 5s + -9s2 + 5s2 = 0

Combine like terms: -9s2 + 5s2 = -4s2
-2 + 5s + -4s2 = 0

Solving
-2 + 5s + -4s2 = 0

Solving for variable 's'.

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
0.5 + -1.25s + s2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + -1.25s + -0.5 + s2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + -1.25s + s2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + -1.25s + s2 = 0 + -0.5
-1.25s + s2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
-1.25s + s2 = -0.5

The s term is -1.25s.  Take half its coefficient (-0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
-1.25s + 0.390625 + s2 = -0.5 + 0.390625

Reorder the terms:
0.390625 + -1.25s + s2 = -0.5 + 0.390625

Combine like terms: -0.5 + 0.390625 = -0.109375
0.390625 + -1.25s + s2 = -0.109375

Factor a perfect square on the left side:
(s + -0.625)(s + -0.625) = -0.109375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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