If it's not what You are looking for type in the equation solver your own equation and let us solve it.
X4+12X+3=0
We add all the numbers together, and all the variables
X^4+12X+3=0
We do not support eXpression: X^4
| 11x-3=x+12 | | (x-7)+75=180° | | 2y-8=5y+10 | | Y+11=20x+5x2-14 | | 100r^2-96r=12500 | | 4/y+2+5/y-4=9/y+5 | | 3x³+3x-36=0 | | x+(0.18*x)=48000 | | 3³+3x-36=0 | | (11x+3)=(16x-7) | | 10x+½=7x=⅞ | | 12-7x=-222 | | 3x-8/3=2x+11/9 | | 3x-8/3=2x+11 | | 10+10x=-200 | | 10x+1/2=7/8 | | 5a-β=-8 | | 10x+1/2=7x=7/8 | | 2x-11=4x+7 | | 9^x+1=27^x | | -10-3y=20 | | -10+3y=20 | | 5{x}^{2}+10x+7=0 | | 3.6x-81x=12 | | -20-4z=-7z+20-12 | | 5-2e=15 | | Y=x^2-12x-14 | | (3x²+5x-9)+(-3x+4)=3x²+2x+-9+4 | | x•2+4=8 | | (6x-3)+(3x-9)=9x-6 | | 2x6−9x5+10x4−3x2+10x2−9x+2=02 | | 2x6−9x5+10x4−3x2+10x2−9x+2=02 |