x^2+11x+80=0

Simple and best practice solution for x^2+11x+80=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 x^2+11x+80=0 equation:


Simplifying
x2 + 11x + 80 = 0

Reorder the terms:
80 + 11x + x2 = 0

Solving
80 + 11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-80' to each side of the equation.
80 + 11x + -80 + x2 = 0 + -80

Reorder the terms:
80 + -80 + 11x + x2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + 11x + x2 = 0 + -80
11x + x2 = 0 + -80

Combine like terms: 0 + -80 = -80
11x + x2 = -80

The x term is 11x.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11x + 30.25 + x2 = -80 + 30.25

Reorder the terms:
30.25 + 11x + x2 = -80 + 30.25

Combine like terms: -80 + 30.25 = -49.75
30.25 + 11x + x2 = -49.75

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = -49.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 0.5x+7=1 | | 7f=2.8 | | x^2+3xy-28y^2= | | 4x^4-16x^3-14x^2+84x-18=0 | | -96.8x+24.2=y | | 2x-3-9x-3=19 | | 3v=6v+42 | | 9.6-2(4.5y+3)=1.2(3y-3)+3y | | -27=-54-6x+x | | -50.5x-1.6y=190 | | 2x^4*(3x+1)= | | 11x-14=12x+7 | | 5x+8(x+1)+3=11-5x | | 5(3n+4)2n-7= | | 2(x+3)-4=18 | | 6x+3=x+1 | | -80x+20=-80 | | 3-7d=-75 | | m^2-24m+4h=1 | | -2(-2x+1)=2x+12-5x | | 5a+3s=4725 | | solvey=42x | | 4+10x=6x^2+2x | | 2x=-8.4 | | 0.9x=0.54 | | 6x^2+2x=4+10x | | 190(x)=0.5x+50 | | -12+3x+x=-32 | | 3(2x+6)-9=3(6x-5) | | 17x-4=16x | | 9(x+1)=6(x+3) | | 12v^2-28v+16=0 |

Equations solver categories