8x^2+4x+5=0

Simple and best practice solution for 8x^2+4x+5=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 8x^2+4x+5=0 equation:


Simplifying
8x2 + 4x + 5 = 0

Reorder the terms:
5 + 4x + 8x2 = 0

Solving
5 + 4x + 8x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
8 the coefficient of the squared term: 

Divide each side by '8'.
0.625 + 0.5x + x2 = 0

Move the constant term to the right:

Add '-0.625' to each side of the equation.
0.625 + 0.5x + -0.625 + x2 = 0 + -0.625

Reorder the terms:
0.625 + -0.625 + 0.5x + x2 = 0 + -0.625

Combine like terms: 0.625 + -0.625 = 0.000
0.000 + 0.5x + x2 = 0 + -0.625
0.5x + x2 = 0 + -0.625

Combine like terms: 0 + -0.625 = -0.625
0.5x + x2 = -0.625

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = -0.625 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = -0.625 + 0.0625

Combine like terms: -0.625 + 0.0625 = -0.5625
0.0625 + 0.5x + x2 = -0.5625

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = -0.5625

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| a(a-3)=0 | | 5-3x-18=x-1+3x | | m^2+5m+mt+5t= | | 22-2y=-6(1+y) | | z^2-7z=-10 | | X^2+14-3x=54 | | X^3-9x^2+23x+15=0 | | 3ab+8ab= | | 48t^2-28t+6= | | 2(x+3)+3(x-3)=0 | | 6(2x-3)=-24 | | -5x+y=-56 | | 5.4x+14.6-10.1=12.8-3.5t-0.6 | | -7(x+1)=4 | | -3p=-96 | | a+16=b | | 5x^4-10x^3-75x^2=0 | | 5x.66-25=0 | | 8x^3-6x^2-5x=0 | | 0.1x^2+.8x+7=0 | | 20*m=2780 | | p(n+t)= | | -3(4x+3)+4(6x-1)=43 | | -125+8= | | 3+(-128)= | | 21(-34)= | | y=24(4)*4 | | -.75(2x+5)=6 | | m-56=111 | | 4x+3X=210 | | 38-(-16)= | | 3-4[10-7+29]+2= |

Equations solver categories