If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5s^2+13+8=0
We add all the numbers together, and all the variables
5s^2+21=0
a = 5; b = 0; c = +21;
Δ = b2-4ac
Δ = 02-4·5·21
Δ = -420
Delta is less than zero, so there is no solution for the equation
| 3/5x+2/5=1 | | 26=-4(3y+6) | | 7/y+1=29 | | 12p+p=12p+p | | -6(3d+7)=32 | | 48w^2-27=0 | | 1/2(x(2x+4)=35 | | 6(10+4x)=-60 | | 5(7x+9)=395 | | -8m+4=10-7m | | -6(-3x-5)=102 | | 6n+9-8=-24 | | -9c+1=10-8c | | -20=-45h^2-80h | | 5(3x+8)=-35 | | 3(1x+7)=39 | | 5(3x+8)=145 | | (x+1)(x+4)=(x+2)(x+5) | | 6-7p=-8p | | 7(1x-10)=14 | | -3p=9-4p | | 7x-7x+49=24+5x | | 8(m+1)=-(-5m+4) | | 6r+8-3r=28 | | 8(m+1)=-(-5m+4 | | (1+r)^10=1.629 | | 6+7f=6f | | −4/5+y=−3/4 | | −45+y=−34 | | 6(v+8)=-3(v+8) | | 6(v+8)=-3(v+80 | | 3x+6x=16 |