x^2+4x+8=

Simple and best practice solution for x^2+4x+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+4x+8= equation:


Simplifying
x2 + 4x + 8 = 0

Reorder the terms:
8 + 4x + x2 = 0

Solving
8 + 4x + 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 + 4x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + 4x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 4x + x2 = 0 + -8
4x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
4x + x2 = -8

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = -8 + 4

Reorder the terms:
4 + 4x + x2 = -8 + 4

Combine like terms: -8 + 4 = -4
4 + 4x + x2 = -4

Factor a perfect square on the left side:
(x + 2)(x + 2) = -4

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2x+3=3x+13 | | -7x=12-2(3x-5) | | 18=-3(24-x)+3(x-2) | | -4a-7+2=-22 | | c/5=8 | | F(x)=x^4+2x^2+32 | | y=.25-16 | | 3x^1/3+2x^2/3=5 | | 8(s+4)=6.7s+5.2 | | .4n+.10=.5(n+4) | | 7(g-1)=35 | | a-4(2a+2)= | | 2k-5/-4-k=-1 | | 3x^(1/3)+2x^(2/3)=5 | | 3x+8(4)= | | 4m+12=m-13 | | 2m+m+10+m=180 | | -9(8p-8)= | | -7+W=8 | | 12-2x=4(x+1) | | 4a-7+2=22 | | (8x+9)(3x-5)=0 | | 5(5r+3)-3=-63 | | 18/3= | | 5+3x=x-7 | | -8=6-2w | | 5z+5z=10 | | 12=-5x-x | | 2x-21=n/4 | | 5y+12-7y=6y-20 | | 2(x-4)+6-8x=10-6x | | 3x-3+x-3=2x-1*2+2x |

Equations solver categories