4n^2-40n=0

Simple and best practice solution for 4n^2-40n=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 4n^2-40n=0 equation: 



4n^2-40n=0

a = 4; b = -40; c = 0;
Δ = b2-4ac
Δ = -402-4·4·0
Δ = 1600
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1600}=40$


$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-40)-40}{2*4}=\frac{0}{8}
=0
$


$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-40)+40}{2*4}=\frac{80}{8}
=10
$

See similar equations:

| 4x-95=3x-36 | | 2x+6/7-x=5/14 | | 3x–36=4x-95 | | 8/3s=(-9)+7 | | 4x–95=3x–36 | | 15x=37 | | 12d+6d-10d=32 | | x-5x/2+7=x/4 | | -3(-7w+2)-7w=6(w-1)-4 | | -3w-18=-5(W+2) | | 1518=5x | | 5x-4x+17=21 | | 4=2-4v-5+18v | | 4=2-4v-5+18v* | | 7(4+3)=-18-8y | | 150=(-9x)-6x | | 284=5x | | 6x²+12x=0 | | -1-2x=1-6x | | |5x-5|=|8x+2| | | 7/9x+5/18=1/2x-1/6 | | 4.9t^2+18t-300=0 | | 5/x=284/1518 | | 9y=-30 | | 1/2n+1/4=n | | 3(4d+2)=54 | | 12x^2+54x=0 | | -4x+3.4=5x+1.1 | | 1/2(n+8)+3/2n=10 | | 7x+13=8x-7 | | 3x+58=7x-6 | | 12=1x |

Equations solver categories