If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-2x^4=0
We do not support expression: x^4
| 6a+12a+24=96 | | -162+2x=8(x+6) | | 2x+2x+88=180 | | 2-13x=-12x-1 | | 10=-3+h | | -5(3x-3)=2(x-4)-147 | | 1/4x+2=1/2x-6 | | 6r-2r+24=36 | | 8g-8g=0 | | 4x-2+x+6=180 | | 12r-16=3r+27+2 | | x-11.5=-14.5 | | 31-17x=7-20x | | 8x+14x-12=24x+12 | | 6.48+w=-9.2-0.6w | | -51x=8 | | 4^2x+2=61 | | -6=y+2/9 | | 12+3x=3(-x+7)-39 | | -7x-78=77-2x | | 3+3(x=6x+1) | | 8x-23=6x+11+46 | | 8a+10a-24=40 | | 12-xx=5 | | g/2.1=−6.8 | | -3/7-1/2y=1/3 | | 9-7x=41(1-3x) | | 3x+63=x-17 | | 9y–6+y+8=42 | | 7.9x-12.3=15.83. | | 4r+6r+24=60 | | Y=3(7-y/4)-5 |