If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x2-10x+40=0
We add all the numbers together, and all the variables
x^2-10x+40=0
a = 1; b = -10; c = +40;
Δ = b2-4ac
Δ = -102-4·1·40
Δ = -60
Delta is less than zero, so there is no solution for the equation
| 7+2q=-3 | | x*0,00750=14,36 | | 9(5x-7)-2(x-4)=5(2x+9)-34 | | 2x-5(x-3)=2(x-10( | | 9(5x-7)-2(5-13x)+1.5(6-10x)=48 | | 3/2*e=6 | | 11/2*e=8 | | 12x-x=23 | | x-(x/1,2)=150000 | | 640=5*2^(x-1) | | 5p+14=32 | | (x-3)^2+(3x+1)^2=20 | | 11/2*e=6 | | 5p-3=5 | | 96=-8m= | | 35+3x-15=23 | | 4t^2-23t-6=0 | | 2x-15+x+45=180 | | y=-1.X-1 | | 18=16+18n | | (2x-1)/(3x+5)=0 | | 50/100=21/x | | 2+2+4*15=x | | y=-0.5.X+5 | | 3x/5x=5/6 | | y=0.5.X | | 3x-17=7x-8 | | x+7/3=-8 | | (4/5)f=-20 | | 10n^2-7n=17 | | 4^3x-5=32 | | 9/k=3/20 |