If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m4+-7m^2+-18=0
We add all the numbers together, and all the variables
-7m^2+m^4=0
We do not support empression: m^4
| 28=1029-58*124/2*1240*434782483+x*200 | | 28=1029-58*124/2*1240*434782483+x/2 | | 28=1029-58*124/2*1240*434782483+x | | 28=1029-58*124/2*1240*434782483/2x | | 28=1029-58*124/2*1240x | | 28=1029-58*124/2*1240/4x | | 28=1029-58*124/2/4x | | 28=1029-58*124/2x | | 28=1029-58*124x | | 5x-(2x+5)=7x-(45-x) | | 28=16*2-10/2*30/5*20x | | 28=16*2-10/24/3*20x | | (z−9)(z−2)=(z+9)(z+7) | | E^8.2x=14 | | 28=16*2-10x | | 3x-8/2x=11+3/2 | | -2=3(y-2)-y= | | (2/3/x)=(5/6) | | 45+7y=85 | | (1/x)=(1/2/4/5 | | 60+7y=90 | | -v+295=38 | | 215-w=174 | | 164=-u+51 | | 2x=-(6/5) | | -16=-(4/5)v | | -(3v/9)=-6 | | 5+3x+22=5+22=27÷3=9 | | 5+3x+22=5+22=27÷3 | | 9x–23=-5 | | 9-4=57x-4x=3x5-27 | | (2b^2+3b-5)/(b-3)=0 |