4a^2-20a=0

Simple and best practice solution for 4a^2-20a=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 4a^2-20a=0 equation: 



4a^2-20a=0

a = 4; b = -20; c = 0;
Δ = b2-4ac
Δ = -202-4·4·0
Δ = 400
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{400}=20$


$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-20)-20}{2*4}=\frac{0}{8}
=0
$


$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-20)+20}{2*4}=\frac{40}{8}
=5
$

See similar equations:

| 3x(5x-12)=8x-(4x-9) | | 43=20+z/3​ | | 4p=3p+p | | 2(10x+20)=60 | | 2-1/4f=-3/4f+3 | | -9n=-8n+6 | | 1/2x-1=1/4x+5 | | -3y+-3y=0 | | 4m-3-35=180 | | 10-x/3=24 | | -9d=-8d+8 | | 2(2x-20)=80 | | 7/8y​=−7 | | 2(2x-20=80 | | Z=4z-9 | | X^2-150x+1350=0 | | 24.6=-4(x+5.3) | | -4(1+9x)=92 | | 3(x-1)=153x-3=15 | | 4÷5y=20 | | 5−–3v=20 | | (11x-10)/(4x-10)=0 | | 9j+3=9j | | -2+7f=10f+10 | | 4g-8=2g=16 | | n^2-2=62 | | 10-7h=h-6 | | -3x^2+6x+297=0 | | -9-9p=9-3p | | 10x-3=5-3x | | -9-9p=93p | | 12x+25=18x+10= |

Equations solver categories