If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2-13x-27=0
a = 1; b = -13; c = -27;
Δ = b2-4ac
Δ = -132-4·1·(-27)
Δ = 277
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{-(-13)-\sqrt{277}}{2*1}=\frac{13-\sqrt{277}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-13)+\sqrt{277}}{2*1}=\frac{13+\sqrt{277}}{2} $
| 26-x=18 | | X×y=34 | | 7(2+x)+15=10x-4= | | -2x-3=-37 | | 9x-9=-306 | | 1a-6=8 | | 205=7x+9 | | 13s+4=-3(3-4s)-1= | | 2(2+3y)=154=25 | | 12=-5x+-8 | | 2(2+3y)=154 | | 2=(1+r)^3 | | 6x-6=6x*6x+2 | | 7(x+2)+3=3(x-5)-8 | | 18/10+3m/10=464/100-58m/100 | | 18x+10-17x=5 | | 0.3(6+m)=0.58(8-m) | | (4x+5)+3(2x+5)=80 | | x^2+38x-323=0 | | (x/2)-(x/4)=x-9 | | 6x2+23x+7=0 | | 4x×5=5 | | -9(2+8b)=-567 | | 19=16k-21 | | 10x-15=6x+45 | | 4p–3=13(p=–4) | | 4b+15=16 | | (x/3)-(1/2)=(x/5)+(3/2) | | (4x/5)-(3/10)=(x/5)+(x+4) | | 4x+35=30 | | 0.35x=2.1 | | 165-v=250 |