If it's not what You are looking for type in the equation solver your own equation and let us solve it.
t^2+t+4=0
a = 1; b = 1; c = +4;
Δ = b2-4ac
Δ = 12-4·1·4
Δ = -15
Delta is less than zero, so there is no solution for the equation
| y-556=282 | | 4+4x=-8+2x | | 7x=-3x-8 | | s*5-25=75 | | 7x39=3x+15 | | 4n+21=34 | | 193=u-173 | | 20n+100=1140 | | 3x^2=4=8 | | -1+2r=11 | | 12x=28-3x+7=5 | | 8=(5x+6) | | x/8+20=360 | | 16x+3=115 | | 8=n-79 | | 420=5*x | | k-84=9 | | 99=v+47 | | 68+3y+8=180 | | x/8+62=360 | | 30=h-22 | | 4x^2+4=26 | | 4x+3x=17 | | f-14=10 | | (5x-4)=24 | | z+48=51 | | (10x)+(21x-6)=180 | | m+52=90 | | 7.2x=180 | | 12(x+5)=-3(x-20) | | 9x-21-4x+5=9 | | 13x+102=360 |