-x(-x-4)=0

Simple and best practice solution for -x(-x-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 -x(-x-4)=0 equation:



-x(-x-4)=0
We add all the numbers together, and all the variables
-x(-1x-4)=0
We multiply parentheses
1x^2+4x=0
We add all the numbers together, and all the variables
x^2+4x=0
a = 1; b = 4; c = 0;
Δ = b2-4ac
Δ = 42-4·1·0
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-4}{2*1}=\frac{-8}{2} =-4 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+4}{2*1}=\frac{0}{2} =0 $

See similar equations:

| 25-5x=13 | | 4x=5=-7 | | s*4-37=19 | | 3*1,08^x=14 | | x+7=-4(-x-3) | | 1,05^x=2 | | 10^x=250 | | 8x^2+6,28x^2-100=0 | | 14-3y=2(y+6) | | -6x-4(4x+7)=4(5x-10) | | 2x+4(x-4)=14 | | x/7+5=3 | | 3(t-3)=2t+8 | | z/9+4=2 | | w=51-2w | | 6x-3=4x=13 | | 3x=6=-15 | | -2x+19=-7x+39 | | 5x=7=-23 | | 2/(x+9)=4 | | 6x+24=3x+87 | | 3b+9=b+15 | | 5/(x-9)=3 | | t÷4-3=3 | | a÷5+4=15a= | | 5^x=8 | | 3x+5=11x-35 | | X^(1/2)=-x-6 | | 1a+12=6-3a | | W(w+10)=880 | | 5b-6=49 | | 10^x=0,01 |

Equations solver categories