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-6=9
We move all terms to the left:
x^2-x-6-(9)=0
We add all the numbers together, and all the variables
x^2-1x-15=0
a = 1; b = -1; c = -15;
Δ = b2-4ac
Δ = -12-4·1·(-15)
Δ = 61
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{-(-1)-\sqrt{61}}{2*1}=\frac{1-\sqrt{61}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{61}}{2*1}=\frac{1+\sqrt{61}}{2} $
| X-13=13-2x | | -6=s-12/3 | | 90=3(u+9) | | 11x-2(x-3)=5x-6 | | -28+3s=-88 | | 35=15+4j | | −4(2x+1)=−8x–2 | | 27=6s-27 | | -3=c-7/4 | | (60-2x)*(40-2x)=2380,04 | | 4w-2w-w-w+4w=16 | | 10=-5(7+v) | | 98000=60000(1+r/12)12•15 | | -d+8d=-49 | | (4x-16)/(3x-4)=3 | | B+c+64=180 | | 33x-51x=41-25 | | 12=-8a-4a | | r-52/4=10 | | F(x)=3x²-8x-3/2x²+7x-4 | | -3(u-10)=36 | | 3(k+13)=60 | | t-18=-16 | | -69=8t+11 | | q+51/9=9 | | 2(4w–1)=−10(w–3)+4 | | 14=9+a | | 4x-16=9x-12 | | 21=2t-33 | | a/5-14=-14 | | x=4^10/1024 | | 8(b−1)=24(b+4) |