If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7n^2-2n+8=0
a = 7; b = -2; c = +8;
Δ = b2-4ac
Δ = -22-4·7·8
Δ = -220
Delta is less than zero, so there is no solution for the equation
| -9x^2-2x+3=0 | | (4x-9)=(3x+29)=180 | | (7x-3)=(6x+17)=180 | | 3x^2+7=-22 | | (2x+9)=(7x+24)=180 | | 10y^2-9=-178 | | (6x+20)+(4x)=180 | | Y=7/6x+15 | | 100x^2-7=42 | | (3x-2)=(2x+30)=180 | | 12x^2+3x^2+20x+5=0 | | 3x+6=4(x-2)= | | 3x+6=4(x-2 | | 9(x+6)=-63 | | 7u+6=9u | | 1/4x+3=1/2 | | 7.28=-0.2d+91 | | 74-y=60 | | 2x-1713=13 | | B+9=17a | | 7x+10+3=180 | | 4v+3v=-7+8v | | -5=1+5n-3n | | 25.48=19.6h | | 3x+34=79 | | 6x+30-3x=3x+21-3x | | n–5=20 | | 4v^2=-12v | | 18v-+5v+29=6v-27 | | -8x+4(x-7)=12 | | 2+2x-8x=6+10-x | | 79=0.1d+77 |