s^2+3s+8=0

Simple and best practice solution for s^2+3s+8=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for s^2+3s+8=0 equation:


Simplifying
s2 + 3s + 8 = 0

Reorder the terms:
8 + 3s + s2 = 0

Solving
8 + 3s + s2 = 0

Solving for variable 's'.

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + 3s + -8 + s2 = 0 + -8

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

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

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

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 = -8 + 2.25

Reorder the terms:
2.25 + 3s + s2 = -8 + 2.25

Combine like terms: -8 + 2.25 = -5.75
2.25 + 3s + s2 = -5.75

Factor a perfect square on the left side:
(s + 1.5)(s + 1.5) = -5.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 20+18+19c=-18+15c | | -5(x+2)-7=-17 | | 2y+3x+7=18+3x | | -4p+0.5=-4p+1 | | 1.6p+5f+8s=160 | | -13m-10=-4-6m-6 | | 58K=580 | | -100=2(5n-2)+6n | | 82-3x=8x-138 | | 4=0.6y-r | | 2+2+4+2= | | 9-15s=-17s-18-5 | | -(3+x)-3=-7-2x | | W+-4=37 | | 0.6x=400 | | x^2+kx-31=0 | | 5x-14=29 | | -11-4u=18+13-u | | -7+x=2(1-x) | | x=2+1/32,56/12-32*5x | | 8y+3x+6=9+3x | | -10-7v-4v=-18v+18 | | -19x+46=-123 | | -2(1+3k)=-2-3k | | 5(x-8)-6(8x+9)=-44(x+2)-6 | | 3x+13=14+2 | | x=2+1/32,56 | | y-6x=9 | | 2.7-5=12.2y-9.9y+6.5 | | -11+8j=12j+17 | | 19.50h+185+220=795 | | 2x^2-y^2-z^2=40 |

Equations solver categories