x^2-x+8=0

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


Simplifying
x2 + -1x + 8 = 0

Reorder the terms:
8 + -1x + x2 = 0

Solving
8 + -1x + 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 + -1x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -1x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1x + x2 = 0 + -8
-1x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-1x + x2 = -8

The x term is -1x.  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.
-1x + 0.25 + x2 = -8 + 0.25

Reorder the terms:
0.25 + -1x + x2 = -8 + 0.25

Combine like terms: -8 + 0.25 = -7.75
0.25 + -1x + 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:

| -6(3x+2)-5=12x+9 | | (6x-3)*(2x-4)=0 | | -x-(-10)=5 | | 9c-5=3c+1 | | -5(2x+3)-3=10x+2 | | 9x+5x+3+7=4x+4+9x | | (5x+7)+(-6x+5)= | | 4+6=17x | | 4m+8=6m-9 | | 4(k+3)+2=4.5(k+1) | | 2.1q-4.2-1.2=-0.1q-5.5 | | 10y=4y+10-6y | | -14-8x=6-10 | | 14-8=6x | | -9x+8=3(x+9)-2 | | 0.8w-0.5w+0.2w=4 | | -2x+y=-4 | | 3(2z+25)-2(z-1)=78 | | 4(x-8)=4x-32 | | 24-8=13x | | -x+y=-2 | | -5-3(2x-1)=5(x+3) | | 6x+2+4x+8=9x+3 | | 4-2x=6-2x+x | | x-86=-42 | | 7p=-42 | | w+6=2(w-6) | | 167-2x=43x+22 | | 1.7x-8=2.7x+4 | | 12t=-88 | | 12-10x=22-17x | | -80-7x=7x+18 |

Equations solver categories