15x2-90x=0

Simple and best practice solution for 15x2-90x=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 15x2-90x=0 equation:



15x^2-90x=0
a = 15; b = -90; c = 0;
Δ = b2-4ac
Δ = -902-4·15·0
Δ = 8100
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{8100}=90$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-90)-90}{2*15}=\frac{0}{30} =0 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-90)+90}{2*15}=\frac{180}{30} =6 $

See similar equations:

| 2/3(3q-12)=-5 | | 11(z+1)-4(z-4)=2(z+4)+4(z+1) | | 1/2(6x+10)=-4 | | 6y-4×=3 | | 9f-4+6=35 | | 6x2+54x=0 | | 6x6=56 | | -4/3n-9=-6 | | 10-x=3x-18 | | 10=4+3{t+2} | | 1x/4-5=1 | | 1/4x+8=3/8+6 | | 9(z+4)−3(z−4)=2(z−4)+3(z−1) | | -3+6/5r=-15 | | 9y+7y=17 | | 8x2-72x=0 | | 4(2x-7)-3=4(x-4)+9 | | 6/7=9/a | | (2x-4)+(4x-1)=8x-4 | | 5x2-192=0 | | (x−6)2=25 | | 2x-1-1x+3=6-2x | | y/9+6=8 | | 37=7k | | f(-1)=-1-2 | | .06(6.5+2b)=16.43 | | 2/3y-1/5y=-4/3+2/5 | | 8b+4=60 | | 0=-425x^2+42500x-1011000 | | -7-3r=2r+1-5r | | 3(5z+1)-9=84 | | 0=0.005x^2+0.23x-3 |

Equations solver categories