3x2+9x+4=0

Simple and best practice solution for 3x2+9x+4=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 3x2+9x+4=0 equation: 



3x^2+9x+4=0

a = 3; b = 9; c = +4;
Δ = b2-4ac
Δ = 92-4·3·4
Δ = 33
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-\sqrt{33}}{2*3}=\frac{-9-\sqrt{33}}{6}
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+\sqrt{33}}{2*3}=\frac{-9+\sqrt{33}}{6}
$

See similar equations:

| 5a=3a+13 | | 3(x-6)=4(2x+1)-4x | | 2•(x-5)=x+5 | | ×-(5÷3×x+14)=26 | | 5(x+5)+x=2(x+5)-5 | | -5x+11=-13 | | ×-(5÷3x+14)=26 | | 1/5x+2=-2 | | 9x-8=7x+28 | | 31y+5=13+25y | | 0.4(x-8)=1.6 | | 0.2x-0.4(6-x)=0.9 | | -29x-11=-6 | | 0.36t2+4.8t=0 | | 0.85x+0.05(2-x)=0.10(33) | | 3x=−48 | | ×-(5÷3x)-14=26 | | 275=x*0,25*0,5 | | 9x+6=-8+6x+23 | | 12a^2-4a=-64 | | 260=10(x-50)+60 | | 2,5x=100 | | 3x-2/5-2+x/3=1 | | 1/5(x-7)=4×-3(x-1)+34/5 | | 6x-1=3+7x | | 1/3(x-5)=3x-2(x-1)+5/3 | | 1/3x+1/4x=21 | | 0,5x=4 | | 3x-2/15=1 | | 51/3m+71/4=-11/6m+30 | | p=7-2p | | 2t-(-7)=3 |

Equations solver categories