8+x+x^2=0

Simple and best practice solution for 8+x+x^2=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 8+x+x^2=0 equation:


Simplifying
8 + x + x2 = 0

Solving
8 + x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + x + x2 = 0 + -8
x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
x + x2 = -8

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = -8 + 0.25

Reorder the terms:
0.25 + x + x2 = -8 + 0.25

Combine like terms: -8 + 0.25 = -7.75
0.25 + x + x2 = -7.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -7.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6x+8=2(5x-10) | | 2x-1-(-x+2)=5x-3-2x | | 2(b+2)-(7+b)=-2 | | 2+5x=4x-3 | | 9x=-3x+18 | | 9=4x+12x-7 | | 7/8x3/5-1/4 | | 8(6+n)=8 | | -4a+8+2a=9a-5a | | -7(x+1)-18=29+2 | | 3.2*0.5= | | 5t+3+4t-8t=2+5 | | 18y=17(y+9) | | 4(4)+3.7y=-8.5 | | 8s+14=2 | | 8(r+6)=2(r+4) | | 3/2+5/2 | | 3.2y=4.8 | | 6+n*8=8 | | -6x-18=10 | | 126in^2=(x+3)(x)(1) | | -12=-120 | | 6+8n=8 | | 12/0.3 | | 7n-22=125 | | 2x-(0.4+1)=3.4-0.6x | | D/6-7/5 | | 9-(2-3(-4))=4+2(-4)-(5+-4) | | 9/2-7/5c | | 0.3k-0.05+0.6k=0.013 | | 9-(2-3x-4)=4+2x-4-(5+-4) | | 3x-l=11 |

Equations solver categories