If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(x+6)(3x-9)=0
We multiply parentheses ..
(+3x^2-9x+18x-54)=0
We get rid of parentheses
3x^2-9x+18x-54=0
We add all the numbers together, and all the variables
3x^2+9x-54=0
a = 3; b = 9; c = -54;
Δ = b2-4ac
Δ = 92-4·3·(-54)
Δ = 729
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{729}=27x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-27}{2*3}=\frac{-36}{6} =-6x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+27}{2*3}=\frac{18}{6} =3
| -f+24f-8=4f+8 | | 2-3x+11=-12 | | -(8x-8)-3x=-3(2+4x) | | 44=3g+14 | | -11+4b=-31 | | -5x-4x=-8 | | 3x=-7+4x | | 3y+21+72=180 | | 4b-5=8 | | -4-9z=-10-7z | | -7c+8=-2-6c | | y=-1(0)+2 | | 3r-2=-76 | | 2=5/n-1 | | 13-5x(X)=140 | | 15x−712=30 | | 2x3+2x-7=0 | | 3r-2=76 | | 90x-22x-18=9x-4 | | -g+7=g-9 | | 4x+212=720 | | 1/2x-2/3=2/9 | | 14=x/2+17 | | 14x+63=3/5-3x* | | 8-2w=-2w-8+2w | | -4.49-8.4b-6.6b=-5.1b+4.42 | | 6x+4=2(3x-10) | | 3m+18=27 | | 5x-36=-16 | | y=-1(-2)+2 | | 12=4500m | | -87=7(x-4)-3 |