If it's not what You are looking for type in the equation solver your own equation and let us solve it.
X^4-4.5X-9=0
We do not support eXpression: X^4
| x/x+0.05=28.5 | | 69+65x+1+45=180 | | 70+55+x+58=180 | | 14+8x=45 | | 14+8x=4x+9+45 | | 5x–9=7+3x | | 4x-(2x+10)=5 | | 0.4^x=0.05 | | 14=0.24*x | | 3a=+6 | | Y=8.55x | | 11-4m=71 | | 30=10+4m | | 68.2=x | | b+11=-4 | | (3x)^2=6+4x+22 | | 18=3z-3, | | 4y–6=18 | | 3^(2x+1)=75 | | 0=9x^2-360x+1000 | | 8x+3x=27 | | 7x+6=3x+22 | | 105+9=3k | | 7x+6=3x+227x+6=3x+22 | | -7x+1=7x | | 28=11u-4u | | 2(|x|-1)=√3 | | 2x-4=x+13 | | 2-4|x|=2|x|+5 | | 16x+11=-10 | | 36-7n=-7(n-5) | | -16t^2=33t+8 |