x(x+8)=12=0

Simple and best practice solution for x(x+8)=12=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(x+8)=12=0 equation:



x(x+8)=12=0
We move all terms to the left:
x(x+8)-(12)=0
We multiply parentheses
x^2+8x-12=0
a = 1; b = 8; c = -12;
Δ = b2-4ac
Δ = 82-4·1·(-12)
Δ = 112
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{112}=\sqrt{16*7}=\sqrt{16}*\sqrt{7}=4\sqrt{7}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(8)-4\sqrt{7}}{2*1}=\frac{-8-4\sqrt{7}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(8)+4\sqrt{7}}{2*1}=\frac{-8+4\sqrt{7}}{2} $

You can always share this solution

See similar equations:

| 4=-18-7b | | 1.4x(x-5)(x+35)x=360 | | 276=16x•32 | | 3(v-2)-5=-5(-5v+1)-6v | | 4x.2=3+4x | | 8/2=a/100 | | 5/2=15/y-3 | | -7=-4+w/3 | | 5n=13-8n-9 | | 4^x+1x8^3x-1=256 | | 500x+4500=9500 | | -x=2.8(3x+5)-2.6x | | | | | | -3x+7+x=-3 | | 9n-9=18 | | 3x+12=x/2-8 | | X^2-4y^2=24 | | 15x-1.5=24 | | 9m+26=5m+3 | | x^2+12x-51=0 | | 2x-16=x+44 | | 3y+4(7-2y)-6(y+14)=-1-(y+5) | | (6y•2)=-5•6y-6+174 | | -(1-5x)+6=10+5x | | F4(w-5)-4=-3(-7w+4)-7w | | 11x-5=8x-6 | | -4w+10=-2(w-7) | | 3/10=10x | | 4(w-4)-8w=-8 | | 4(5+8d)D=84 | | 2-6(1-x)+x=4(2x-1)-x | | 17x-3=-43 |

Equations solver categories