If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x2-18x+11=0
We add all the numbers together, and all the variables
x^2-18x+11=0
a = 1; b = -18; c = +11;
Δ = b2-4ac
Δ = -182-4·1·11
Δ = 280
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{280}=\sqrt{4*70}=\sqrt{4}*\sqrt{70}=2\sqrt{70}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-18)-2\sqrt{70}}{2*1}=\frac{18-2\sqrt{70}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-18)+2\sqrt{70}}{2*1}=\frac{18+2\sqrt{70}}{2} $
| n+n=n+n= | | 5x2=28 | | -2n-1=13-4n | | 5(b+11)=10 | | 2x+11=-1+8x | | 5.5x+3=5x+6 | | 4(44)21 =2x | | 1-1.9a+a-1.9=6.2(0.6a+2.1)+3.6(7.3a-7.3) | | 2(2m)+4(4m+12)=108 | | 15=m2 | | -10h-15=-12-11h | | u4=4 | | 15x=10x-15 | | -4(x=3)=-12 | | 4^-4x+2-16^x^2+1=0 | | z/I4=4 | | 5x+20=1- | | *4x+1=25 | | -5/x=-2 | | .−5(x−1)=40 | | 5(v+1)=15 | | 189-y=275 | | F(-12)=3x-11 | | 3x-11+x+23=90 | | 84+(7x-14)=180 | | 4(4+2x-17)=36 | | –2+y=–11 | | 4,900=m*5,000 | | 6x57=342 | | q+23=55 | | 3x=22x-150 | | 25=y+0 |