If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2t^2-7t+8=0
a = 2; b = -7; c = +8;
Δ = b2-4ac
Δ = -72-4·2·8
Δ = -15
Delta is less than zero, so there is no solution for the equation
| x5+16=14 | | 2(2x+40)=120 | | 6k^2+5=269 | | 0=12x+350 | | 5(2c-2)=2(c+11) | | 2.6/0.9p=-1(-1p-2.1) | | 4.3g+5=1.3g+14 | | x^+18=0 | | X(90+8)=n | | 58+3x+4=180 | | 5+10y=4 | | 8a+1=-7 | | 5.3g+4=3.3g+8 | | F(-1)=2x+4 | | 12w-40=8 | | F(-2)=2x+4 | | F(c)=23 | | 8x=20=-10+10x | | 1/8=6u | | -15x=33 | | 6+4f=-4=2(3-5f) | | 175-w=237 | | 4y+5(-3y-9)=-6(4y-5)=7 | | 249=-w+27 | | -4(-5z+6)=-5z-6 | | -2k-3k+5=2k-8 | | 70x/12=-2 | | 70/12x=-2 | | -8(t)=5/4(4-t) | | 32x.75=24 | | A=3.14x144^2 | | x=61.5 |