If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-5x^2+20x-25=0
a = -5; b = 20; c = -25;
Δ = b2-4ac
Δ = 202-4·(-5)·(-25)
Δ = -100
Delta is less than zero, so there is no solution for the equation
| m-6=54 | | 5x+24+6x-5=360 | | 0.2(10x+17)=3.9(0.2x+5) | | 3-(2)=-i | | 3-(1)=-i | | 2k=3.1 | | 22/33=n/9 | | 4a+114=134 | | -13=n-3 | | 4=12b+8/24 | | x(36-x)=0 | | 160=180(n-2) | | x/39=19/78 | | 96=3(3x | | 3x*4=96 | | 42=6d+12 | | 6t+9=63 | | 4x+2(x+6)=46 | | n=(12-n)^((1)/(2)) | | 3(2e+4)=2(e-10) | | 200*1.5^x=900 | | 2(6a-4)=3(2a+10) | | 42=-3(4a)+6 | | -3(-5y+-1)=63 | | 25-7m=5-3m | | x-0.07x=34.000 | | h/2+-9=-10 | | 2(x-8)=92 | | -8+3b=5b=8 | | 1+1b=3 | | 25=2u | | 8=t-2t |