20x2+5x=0

Simple and best practice solution for 20x2+5x=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 20x2+5x=0 equation: 



20x^2+5x=0

a = 20; b = 5; c = 0;
Δ = b2-4ac
Δ = 52-4·20·0
Δ = 25
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{25}=5$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(5)-5}{2*20}=\frac{-10}{40}
=-1/4
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+5}{2*20}=\frac{0}{40}
=0
$

See similar equations:

| k/2-2k1=7 | | r/7+1=-1 | | 6x-11=3x-16 | | 18x2-9x=0 | | s+3/8=3 | | -1.5x-11.07=3x-12.87 | | 8(.5x+5)=200 | | 1=1.25-0.75+1.25(0.6/x) | | 9y2-6y=0 | | 2+28x+4.9x^2=0 | | 10y-34=6y+14 | | 6(g+6)=78 | | 2.4+x=9.6 | | 269=143-y | | r=8/2*3.14 | | 4g+11=7 | | 3x+28=5x-14 | | -3s=27 | | 2x+18=-15 | | 65/100=x/30 | | 2x-í=3 | | 6x2+2x=0 | | 26+9f=80 | | 3x+15=6x-18 | | 7y−3=25 | | 10^x+6^x=259^x | | 8c+25=65 | | z2+16=20 | | -48=q/3-40 | | 2x(4-2+x)-8x+4(4)=16 | | 7y+32y=9 | | z.7=7 |

Equations solver categories