If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2-8x-209=0
a = 1; b = -8; c = -209;
Δ = b2-4ac
Δ = -82-4·1·(-209)
Δ = 900
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{900}=30$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-8)-30}{2*1}=\frac{-22}{2} =-11 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-8)+30}{2*1}=\frac{38}{2} =19 $
| 4x+3+9x-47=180 | | x+4.8=-7.5 | | 60+(14x-20)=180 | | 2.4p=2/3 | | 36-2x=-8-6(5x+2) | | (7/8)x-3+(1/4)x=(7/32)x+(1/8) | | (-2p)-3=-19 | | 11x-65=58 | | 1/4p-(1-1/3p)=0 | | y=12y+60 | | 4(x-7)=-40 | | 4x+6-3x=8+2x-6 | | 2x+30+6x+2=90 | | 7-2b=3b+2 | | 2x+30+6x+2=180 | | 78=6(x-5) | | 4x+15x^2-3=0 | | 6x-20=160 | | 1.4=56r | | y=8(21)+10 | | 5x+2=-4x+29 | | 13x-60+x=180 | | 7k^2+1=0 | | 9x-3+3x=33 | | 1/3x+14=24 | | |4x-6|=10 | | u/5+11.4=-1.1 | | 2.5=4.8t | | 5x-7=61 | | 2x+12+x+3x-9=117 | | 36-4x=4x+4 | | 2/5=28b |