If it's not what You are looking for type in the equation solver your own equation and let us solve it.
u^2+16u+65=0
a = 1; b = 16; c = +65;
Δ = b2-4ac
Δ = 162-4·1·65
Δ = -4
Delta is less than zero, so there is no solution for the equation
| -12.6r=-10.2r+11.28 | | -11p-16=-12p | | 17.6-n=-31.7 | | 9x-7+7x-3=180 | | 14k-19=10k+17 | | -27=-3p+15-36 | | 7+3(m-4)=3 | | 6.x=36 | | 1.5(8x-9)=71/5 | | g-160=24 | | h/4+3=6 | | 5/h+6=2. | | g-24=160 | | 20-10s=-13s-18+2 | | 1/2+x=35/2 | | 5-(x+3)=7 | | 8z+6÷3=10 | | 3(1)-5y=9y= | | 5(x+3)+4=-5(x-9)-7 | | 4(x-5)=-44 | | 9=j/3+6 | | 3=-5n+8 | | 5-4x=75 | | 2n+6=-4n | | x+27+2x-7=180 | | 10=p/3+7 | | 2x-43=-7 | | -9(n+5)=155 | | 4/9x+1/5x=8 | | 4y+y=-3 | | -3+x=19/6 | | 4000+x=65,000 |