If it's not what You are looking for type in the equation solver your own equation and let us solve it.
X^2+17X-66=0
a = 1; b = 17; c = -66;
Δ = b2-4ac
Δ = 172-4·1·(-66)
Δ = 553
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{-(17)-\sqrt{553}}{2*1}=\frac{-17-\sqrt{553}}{2} $$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(17)+\sqrt{553}}{2*1}=\frac{-17+\sqrt{553}}{2} $
| 10–4m=18 | | a^2+6a-20=0 | | R2+25r-150=0 | | y=-0.6(5)+87.8 | | B^2-11b+110=110 | | 5=-0.6x+87.8 | | y=-0.494(5)+80.4 | | 3n=15/2 | | 2(h+1)=±(2h-6) | | x=-0.000102(70000)+17.3 | | 70000=-0.000102x+17.3 | | 5^2+6d+18=18 | | 162.75=-0.000102x+17.3 | | (3m-4)(5m-9)=0 | | 8y-50=-10 | | X=-42y | | Y=20x+1000 | | 5-7÷b=2(b+4)÷b | | 15+0.5y+2y=60 | | 6x+3x=4-5(2x-3 | | 4(2x-9)4x=4-6x | | 24^2x=216 | | 3x+40=440 | | 8x=9=57 | | -(-16-p)=13p-p | | 9+4x=89 | | 4=j/6-3 | | 4j-31=-11 | | 7h+73=17 | | 4x–12=2x | | 7b+8=29 | | 3.5n=8.5 |