If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(-x)^4+2*x^2
-25/(x^2)
ln((x^3)/9)
1*x^3-(6*x^2)+12*x-8 = 0;x
x
12/9-43 = 1000
| 7a^2=392 | | 9x-24=4x-36 | | x/3-2=1/2 | | 9x-21=16x+5 | | 5p-4p+8=-2+3 | | 18+c=2c | | -x/4-4=-5 | | (x)-(x/4)=21 | | 4x^4-12x^2+5x=0 | | 7x+9=39 | | 3+1=b-1 | | 4x^4+12x^2+5x=0 | | 10p^2-3=67 | | 4x^4-2x^2+5x=0 | | X-9/6=2 | | 8^(4x-3)/2^6=4^(5-x)/2^(2*x) | | 4x^4-12x^2-5x=0 | | 2a-2c=4a | | 0=-4z+6 | | 3x-4=10-x | | X-(-5)= | | y=x^4+2x^3-12x^2-2x+6 | | 2x-6=4x-26 | | 12x-6=10-2x | | 280=100+20x | | 2.5=0.125 | | p^4p/p^-2= | | f(x+7)=9x-3 | | 5z^2-8z=3/5 | | r^2+r-10=0 | | (1+t)-expR(t)=0 | | 0.12(y-2)+0.18=0.08-0.03(30) |