x^2+x+8=

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


Simplifying
x2 + x + 8 = 0

Reorder the terms:
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:

| 99999999999999999w^2-9999999999w+9999999=99999999 | | 3/4(-3/7)= | | 99999999999999999w^3-9999999999w+9999999=99999999 | | 24-16x=-10x | | x^4-4x^3-5x^2=0 | | 24-16x=-10 | | 225/(-3)(-5)= | | (-4)(-13)/-26= | | 100w-10=1000000 | | -68/17= | | 3x+10+6x+8= | | -52/-13= | | (3x-4)(3x+4)=9x^2+6x-4 | | (-8)(5)(-3)= | | -(-6w+v)+(2v-w)=0 | | 2(x+3)+5(x-7)=41 | | (w+5)*(w-3)=0 | | 25-5d=d | | -30(-5)= | | 2(-4)(-6)= | | (-14)2= | | 3x+5(x-7)=41 | | (6)(-8)= | | 0.80x+0.50(8-x)=.10(-101) | | 2g-2+4g-9= | | Y=X[X-4] | | -21=x+10 | | (-6)(-9)= | | X-19=-43 | | 90+2x+x+15=180 | | (-2)(8)= | | 2x-9y-4=0 |

Equations solver categories