If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(X+10)(3X-12)=0
We multiply parentheses ..
(+3X^2-12X+30X-120)=0
We get rid of parentheses
3X^2-12X+30X-120=0
We add all the numbers together, and all the variables
3X^2+18X-120=0
a = 3; b = 18; c = -120;
Δ = b2-4ac
Δ = 182-4·3·(-120)
Δ = 1764
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{1764}=42$$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(18)-42}{2*3}=\frac{-60}{6} =-10 $$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(18)+42}{2*3}=\frac{24}{6} =4 $
| 2x2-16x-24=0 | | 3(8-k)=-43k+24 | | 17x+6=112 | | 46=w/5+17 | | u/3=+10=11 | | n^2-14n-60=0 | | 7x+2=-119 | | 10/15=18/x | | 10/18=15/x | | 19-63/t=10 | | X-7x/10=30 | | 5t-4t=2 | | 4+66=33x+22 | | (3x÷4)*(7÷9)=1 | | (X-7)*(x-7)=1 | | -x-1,6666666x=-10 | | (3x-3)-7x=50 | | 10=0,33333x+0,083333x | | 3x+20=-2x-10 | | p=3.42*68*9.79/21 | | X+19=4x+16 | | 2^(2x+-3)=14 | | -a/11=18/55 | | 38-y=257 | | -4t-7=-39 | | 4x+8-9x-12=-24 | | |9-8b|-7=5 | | 10-5x=4x | | x^2-x-812=0 | | 7x=180-19-17 | | 16x=263+19+17-11 | | 2(7v+8)=-3(4-4v) |