If it's not what You are looking for type in the equation solver your own equation and let us solve it.
18-10x+x2=0
We add all the numbers together, and all the variables
x^2-10x+18=0
a = 1; b = -10; c = +18;
Δ = b2-4ac
Δ = -102-4·1·18
Δ = 28
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{28}=\sqrt{4*7}=\sqrt{4}*\sqrt{7}=2\sqrt{7}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-10)-2\sqrt{7}}{2*1}=\frac{10-2\sqrt{7}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-10)+2\sqrt{7}}{2*1}=\frac{10+2\sqrt{7}}{2} $
| 2.7/7=2/x | | -15+x2=2x | | 2·(1/3x-2)=-4/3x+2·17 | | 5(x-4)=-104 | | 18+6=6/x | | 1^2+m+6=0 | | 5^t+3,5^{t+1}=400 | | -2x-17=0 | | -7+a=16 | | x²+20x+75=0 | | 1/2x+2-3/2x=1.5x | | |x+62|=9 | | w^2-18w+69=0 | | 5(2x+3)=3(3x+8)= | | 4+41+5r=104 | | 2/3+3/4c=7/12 | | n-8=5(n=9) | | 2y-7=45 | | 2m+7=3. | | 78-16k-16=49+6k+9 | | 5x+3=−3+2x | | x-(x/20)=1000 | | x/80=1000 | | 7(t+9)=(-49) | | 4x×5=45 | | -6+24-2=5a+4-4a+20 | | s+2=(-3) | | 2n+4n+2(9+n)=48 | | 4^2u=8 | | w+32/7=9 | | 4^{2u}=8 | | 1,1=56-9c |