If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3n-2n^4+n+7n^4-2n=0
We do not support enpression: n^4
| 3x+1=2x÷8 | | (x+1.5x)=1458.56 | | 1.5x+x=1458.56 | | 2*5-4x=0 | | 12x+10x=220 | | 0.9x+x=3.8 | | 4.5=1/2h | | -38=-76-19x | | x*0.4=120 | | 99=1/2h(22) | | 21x-7-11x-4=67 | | 21x-7+11x-4=67 | | 3.8x-x=28 | | 21x-17+11x-4=67 | | 4(2-x)+6x=3x+8-x | | 4(4-x)+6x=3x+8-x | | 0.5x+0.6x=9.9 | | 4(3-x)+7=4x+12+2x | | 2x+31=x+29 | | 6.7x-1.7x=0.5 | | -4m^2+20m-12=0 | | 36-36=x | | 2m^2-20m-24=0 | | 36+3636=x | | 14x+4=9x-5-137 | | 14x+4=9x-5-136 | | 14x+4=9x-5+137 | | 137-14x+4=9x-5 | | 137+14x+4=9x-5 | | 3.5x/7=1 | | 7x+4x+2=90 | | |x^2-2|=2-3x |