If it's not what You are looking for type in the equation solver your own equation and let us solve it.
X^2-X-18=4X
We move all terms to the left:
X^2-X-18-(4X)=0
We add all the numbers together, and all the variables
X^2-5X-18=0
a = 1; b = -5; c = -18;
Δ = b2-4ac
Δ = -52-4·1·(-18)
Δ = 97
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}$$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-\sqrt{97}}{2*1}=\frac{5-\sqrt{97}}{2} $$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{97}}{2*1}=\frac{5+\sqrt{97}}{2} $
| -12n+7n+11n=-12 | | 7r^2+84=-494 | | -10+14d=-4+13d | | 6x-7x+6=-2(x-3) | | -7j+3j=16 | | 26=7(-6n+2)+6(2-7n) | | 8x-3+8x=180 | | 7(x-6.7)=2.8 | | n+33=-5(6+4n) | | -9s-20=-11s | | –10(x–8)=–40 | | 7m-2m-3m-2m+m=11 | | x4-5=-3 | | -3y+4=-5y-10-5y | | -7+2r=8r+5 | | (3)/(5)x=(2)/(15) | | -10t+11t+2t-2t=8 | | 2/3x−6=6−2/3x | | Y=x2-2x-5 | | 2h+10=-10+7h-10 | | 4x²-19=17 | | 26=7(-6n+2)+6(2–7n) | | 6b=-10+4b | | 4(8-6v)+8=184 | | -3-9q=-10q-10 | | 2m− 8=14 | | 5x+6.81=2x+12 | | X=-36x+5=5x+8+2x | | -41=-5(1-4r)-2(7r+6) | | 1-6u=-8u-7 | | -2n-15=7(-2+3) | | 2x+3x+5x=-30 |