n^2+3n+5=0

Simple and best practice solution for n^2+3n+5=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 n^2+3n+5=0 equation:


Simplifying
n2 + 3n + 5 = 0

Reorder the terms:
5 + 3n + n2 = 0

Solving
5 + 3n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 3n + -5 + n2 = 0 + -5

Reorder the terms:
5 + -5 + 3n + n2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 3n + n2 = 0 + -5
3n + n2 = 0 + -5

Combine like terms: 0 + -5 = -5
3n + n2 = -5

The n term is 3n.  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.
3n + 2.25 + n2 = -5 + 2.25

Reorder the terms:
2.25 + 3n + n2 = -5 + 2.25

Combine like terms: -5 + 2.25 = -2.75
2.25 + 3n + n2 = -2.75

Factor a perfect square on the left side:
(n + 1.5)(n + 1.5) = -2.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 8z+20=13z | | 5cosx-7sinx=0 | | 8a^3+6a^2=0 | | 3(x+1)+2(x+3)=45 | | 6z-5=3+7z | | -5+18+21n= | | 6x=7y+4 | | m^2=-96 | | 8z-9=-11+6z | | Y=48x^2-48x+9 | | 18-3t=12 | | 18-3t=18 | | x^2+34x+192=285 | | -2+4x=4+x-1 | | 18t=12t-3 | | x^2+34x=93 | | 4*4l+7=55 | | 2-2=12x+5x | | 2x^2-y^2+12x+8y-6=0 | | 3*3l+7=55 | | x+30+5x-25=180 | | -10+34x=3x(4x-16) | | x+6y=-41 | | (w^7-w^2+w)-(w^6+w^3-w)= | | -2.5-5w=-7.5 | | 8+2(x-4)= | | 3*2L+7=55 | | 0.04(5b-8)=0.08(10b-1) | | 2-9+8x-7x= | | 18=2-(3x-3) | | ln(3x-14)=18 | | 60x^3-180x=0 |

Equations solver categories