3x(9x-5)=0

Simple and best practice solution for 3x(9x-5)=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 3x(9x-5)=0 equation:



3x(9x-5)=0
We multiply parentheses
27x^2-15x=0
a = 27; b = -15; c = 0;
Δ = b2-4ac
Δ = -152-4·27·0
Δ = 225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{225}=15$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-15)-15}{2*27}=\frac{0}{54} =0 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-15)+15}{2*27}=\frac{30}{54} =5/9 $

See similar equations:

| -3v-6+2v=-33 | | 014x+0.09((0.129-0.14x)/0.14)=0 | | 21x-75=180 | | 0.14x+0.09=0.129 | | (-5b)-6=(-11) | | 4x^-12x=7 | | 5(2+y)=4(1+y) | | (0.14x)/0.14=0 | | -24=5h-8h | | 8+2u=8u-20u-20 | | 2p+10+3p=55 | | 3q^2=10q+4 | | .5n+5=20 | | 1x+1x+1x-7+1x-7=1x+9+1x+2+1x-7 | | 2x-3(2-3x)=3(x-3)-45 | | 29+3n=32 | | 13n+4=30 | | n+3n=32 | | 2z=16-20 | | 3200=300(50-x) | | -8b-12-17b=17b+20 | | -8b-12-17b=-17b+20 | | 9-6x=-27 | | 100/1+e^2×=1 | | -2(x+5)-3=7 | | a^2+18a+49=-7 | | 3x-2=9+7 | | 8x+44=-20 | | -13-5x=17 | | 2x+2x+x=21 | | z/12=2/3=z/4 | | -6j+10+2=-13-7j |

Equations solver categories