5x^2+20x+104=8

Simple and best practice solution for 5x^2+20x+104=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 5x^2+20x+104=8 equation:


Simplifying
5x2 + 20x + 104 = 8

Reorder the terms:
104 + 20x + 5x2 = 8

Solving
104 + 20x + 5x2 = 8

Solving for variable 'x'.

Reorder the terms:
104 + -8 + 20x + 5x2 = 8 + -8

Combine like terms: 104 + -8 = 96
96 + 20x + 5x2 = 8 + -8

Combine like terms: 8 + -8 = 0
96 + 20x + 5x2 = 0

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

Divide each side by '5'.
19.2 + 4x + x2 = 0

Move the constant term to the right:

Add '-19.2' to each side of the equation.
19.2 + 4x + -19.2 + x2 = 0 + -19.2

Reorder the terms:
19.2 + -19.2 + 4x + x2 = 0 + -19.2

Combine like terms: 19.2 + -19.2 = 0.0
0.0 + 4x + x2 = 0 + -19.2
4x + x2 = 0 + -19.2

Combine like terms: 0 + -19.2 = -19.2
4x + x2 = -19.2

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 = -19.2 + 4

Reorder the terms:
4 + 4x + x2 = -19.2 + 4

Combine like terms: -19.2 + 4 = -15.2
4 + 4x + x2 = -15.2

Factor a perfect square on the left side:
(x + 2)(x + 2) = -15.2

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 242=22b | | 9-2.5= | | 4k+21=5 | | (6x^2-7x-46)+(9x^2+9x)= | | 100x=225 | | 85=m-17 | | 4.75x=225 | | 45-6x=x+9+x | | x+5.3=#8722;1.2 | | sqrt(x^2+20x)-5=0 | | x+-5.3=-1.2 | | 16x^2+25x^2-96x-200y+144=0 | | 9*3+4y=36 | | 7x-4=132-10x | | sqrt(x^4+20x)-5=0 | | 6y-2(y+1)3(y-2)+6= | | 13r+9=8r-2 | | 127=90+v | | 3n-5(n+4)=22 | | 2-(3x+4)=11 | | x^2-12x-45=-4 | | 1.25r+5=15 | | 2+2x=25-x | | 850=150+35b | | 8(8p-8)=64 | | p(x)=-0.002x^2+1.4x-250 | | 3x+2y=7y-3x+11 | | 3x+2y=7y+-3x+11 | | 9(c+3)=54 | | -2(2w-7)=22 | | -2+.8x=6 | | -5(4n+6)=10 |

Equations solver categories