If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-28n^2-3=0
a = -28; b = 0; c = -3;
Δ = b2-4ac
Δ = 02-4·(-28)·(-3)
Δ = -336
Delta is less than zero, so there is no solution for the equation
| 1/2q=14 | | 8(7y-5)+30=56y-10 | | 7x2-26x-8=0 | | 12+1.56+3.20+x=2.36 | | 4x/x+2=-2/9 | | x+6+7x=-10 | | 2(3-4m)=5m+6 | | 2(8+2x)=66 | | -5(+3x+1)=-45 | | 680x=58 | | (3x+2)+(x+4)=90 | | -2x+13x-173=157 | | 1,3+1=1-7x | | 1−y=2y2−7 | | 3.5=x/20 | | 13+5-x=30 | | 14b−13b=16 | | -7x+7(6x-5)=140 | | 3x+(3x-150)=1778 | | 5-4(2-7x)=0 | | 6x−4x=18 | | 4(5-6m)=36m | | 2(x^2)=6 | | -2n+24+4n=50 | | 7(3x-3)+11x=10x+21 | | 7-9(4x+8)=3 | | -10=-0.5x | | -0,7x+3=52 | | -0,x+3=52 | | ¾=j-½ | | 215=-1-1-6(4m-4) | | y-9=14; |