x^2+x+1=

Simple and best practice solution for x^2+x+1= 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+x+1= equation:


Simplifying
x2 + x + 1 = 0

Reorder the terms:
1 + x + x2 = 0

Solving
1 + x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + x + -1 + x2 = 0 + -1

Reorder the terms:
1 + -1 + x + x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + x + x2 = 0 + -1
x + x2 = 0 + -1

Combine like terms: 0 + -1 = -1
x + x2 = -1

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 = -1 + 0.25

Reorder the terms:
0.25 + x + x2 = -1 + 0.25

Combine like terms: -1 + 0.25 = -0.75
0.25 + x + x2 = -0.75

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -0.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x+(x+6)*40=7040 | | -27-5x=8-10x | | 2x^2+8x=16x | | y^2+2y=4x^2+12x+8 | | 8x-4x^2=12x+32 | | 8x^2-13x-21=0 | | 8x-4x^2-12x-32=0 | | z+20=160 | | -9+20=m-10 | | y^2+12x=4x^2+2y+8 | | y^2-12x=4x^2+2y+8 | | t=6x+3 | | 4x-2=5x+6 | | 5t=t+3 | | 6=p-b | | p+b=6 | | 2x^2-x-1= | | d-e=b+c | | 6a+5a+4b+9b= | | 8r+28=92 | | 2z=13-23 | | 5d+17=52 | | 6x-6=0 | | x^2-x=4x-6 | | 2m+100=400 | | 6q+8=56 | | 2x^2-30x+189=0 | | y-4=-5(x+5) | | 2x^2=2 | | 10p+40=100 | | 3x+4=x+12 | | 8x-6=4+2x |

Equations solver categories