3x^2+18x+10=-2

Simple and best practice solution for 3x^2+18x+10=-2 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 3x^2+18x+10=-2 equation:



3x^2+18x+10=-2
We move all terms to the left:
3x^2+18x+10-(-2)=0
We add all the numbers together, and all the variables
3x^2+18x+12=0
a = 3; b = 18; c = +12;
Δ = b2-4ac
Δ = 182-4·3·12
Δ = 180
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:
$\sqrt{\Delta}=\sqrt{180}=\sqrt{36*5}=\sqrt{36}*\sqrt{5}=6\sqrt{5}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(18)-6\sqrt{5}}{2*3}=\frac{-18-6\sqrt{5}}{6} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(18)+6\sqrt{5}}{2*3}=\frac{-18+6\sqrt{5}}{6} $

See similar equations:

| x/33=14/20 | | 12t+44=20 | | 5x-8329=1398474 | | 12x+9-6x=15 | | 800-0.75p=6.00-1.25p | | 3(2d-1)=4d(d-2)+5 | | 2(x-5)=6. | | (t+10)(t+20)+t=180 | | 3(x+2)=18. | | 11/2x=11/4 | | –5u+–4u+3u+10u−–5u=–9 | | 44=x-7 | | 17c-15c+4c-18c+13c=-15 | | 3(2-6m)=(-15)+3m+6 | | 7n+n-4n-3n=4 | | 6x+9+3+22x=180 | | 6x+9=3+22x | | 9r^2-10r+3=0 | | f-8/9=5/9​ | | (-9k+8)(6k-7)=0 | | -2(x-3)+5=15 | | (-5/12x)+5=(-12/5x)+60 | | 5-2x=49 | | –10a+–4a−–12a=–2 | | 12x+1=9x-13 | | -1+2x-4x=6+x+2 | | 4x+11=2x−7 | | -94+(14-4x)=180 | | X+14x=27 | | 16b-11b=20 | | −t/4=−3πt= | | 10m^2+20m=0 |

Equations solver categories