2s^2-3s+8=0

Simple and best practice solution for 2s^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 2s^2-3s+8=0 equation:


Simplifying
2s2 + -3s + 8 = 0

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

Solving
8 + -3s + 2s2 = 0

Solving for variable 's'.

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

Divide each side by '2'.
4 + -1.5s + s2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -1.5s + -4 + s2 = 0 + -4

Reorder the terms:
4 + -4 + -1.5s + s2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1.5s + s2 = 0 + -4
-1.5s + s2 = 0 + -4

Combine like terms: 0 + -4 = -4
-1.5s + s2 = -4

The s term is -1.5s.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5s + 0.5625 + s2 = -4 + 0.5625

Reorder the terms:
0.5625 + -1.5s + s2 = -4 + 0.5625

Combine like terms: -4 + 0.5625 = -3.4375
0.5625 + -1.5s + s2 = -3.4375

Factor a perfect square on the left side:
(s + -0.75)(s + -0.75) = -3.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4s+4=-28 | | 2s^2-6s+2=0 | | 6s^2-7s+1=0 | | Log^3(3-5x)=2 | | log(x-1)-log(x+2)=1 | | u^2-14u=43 | | ht=-5t^2+15t+2 | | u^2-26u-35=0 | | ab-b+c+17+6ab-34= | | -21p-15-4+40p=27-18p | | 4x^2+12x-15=5 | | u^2+4u-23=0 | | x^2+xy=24 | | 6.84*x=3 | | f(x)=x^3-4x+4 | | 2cos^2-1=0 | | x*2+2x=16 | | u^2+6u=47 | | X^2+7=7X+3 | | 1.2q-1.9-1.3q=-1.1q-3.6 | | u^2-4u=25 | | -3.7u=7.75 | | A=2x^2+15x+18 | | -3x^2-24x+17=-40 | | -5x^2-20x+35=30 | | 2x^2-14x+10=26 | | y=-x+30 | | -8(4-x)+2x+12=30 | | log[2](x-5)-log[2](x+2)=3 | | f(x)=6x^2+x-15 | | -5x^2-20x+35=0 | | 56x+23y= |

Equations solver categories