If it's not what You are looking for type in the equation solver your own equation and let us solve it.
7;8;5;7;0;0
3*x^4+14*x^3+26*x^2+21*x+6 = 0;x
x
3;4;3;5;3;1
0.25;0.128
3;8
| 5x+30+3x+60=180 | | 42=4y+3y | | 2(3a+4b)-2(3a-3b)=0 | | 18+w=6 | | log(81)3=x | | gx=3x^2+3x+1 | | 18+wA=6 | | 10y-2y=24 | | 9x-3(3x+15)=x | | (12x+7)(4x)=0 | | -4m=-100 | | (5x)(12x-4)=0 | | -6(x-2)+3=9-(v+4) | | sin(x)-Sin(12x)=0 | | 12z+3-6z+9=3z | | t-12=13 | | 5+p=-3 | | 0.30x+(0.55)(480)=(0.40)(x+480) | | 3.50+0.05=27 | | 7n+12+6n+13n-16=360 | | x(x+10)(x-10)=2496 | | 20k+4+13k-13=90 | | (2x-14)=78 | | 8-4c=16 | | u-9.91=3.8 | | 34=4y-10 | | 4x^2+20=2x^2+200 | | (4x)+(2x-10)+(5x)=180 | | (x^3)/3-x^2-3*x=-5 | | (4x)+(2x-10)+5x=180 | | y=(x^3)/3-x^2-3*x=-5 | | 4x+(2x-10)+5x=180 |