9x2+9x+2=0

Simple and best practice solution for 9x2+9x+2=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 9x2+9x+2=0 equation: 



9x^2+9x+2=0

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

$\sqrt{\Delta}=\sqrt{9}=3$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-3}{2*9}=\frac{-12}{18}
=-2/3
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+3}{2*9}=\frac{-6}{18}
=-1/3
$

See similar equations:

| -4x2-2x-24=0 | | 3/5y+7=1/2-y | | 9b^-72=0 | | y/16=1/48 | | -4x2+200=0 | | 40.n=1200 | | 5a/3=25/9 | | 104x+1040=126x-280 | | n+40=1200 | | X|2-3x|4+5x|6=21 | | 1200n=40 | | 3^2-21x-6=0 | | 2x=4x+ | | 16t+16t=112 | | d²-49=0 | | 5*3^2x=10*2^x | | (3x+5)=(2x+18)=(2x+17) | | z/9=100 | | (s+2)^2+(2s+2)^2=4 | | y-27/5=9 | | 3b^-48=0 | | 0.5x+9=460 | | 8y+5=2(y-3)+11 | | s-6=8.5 | | (x^2-6x+11)^10=1024 | | -3(x-5)+2(x=+2)=15 | | s−6/2​=8.5 | | $$s−6/2​=8.5 | | s−62​=8.5. | | 4b^2-32b=-28 | | 4m-3=-15+8m | | 7-4K+6k=15 |

Equations solver categories