If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3*x^2-(12/4) = 9
641.66;604.08
{root[2][11.2225]}
{root[2][10.5]}
3*x^2-(12/4) = 9
| 5x+24=x-32 | | 125=b+84 | | 1-6x=2-7x | | 3p+51=9p-45 | | 4(4-6)=7y | | 8x+45=3x | | 30x-6y=42 | | -7a=-12a | | 0.4x+50=1.6x+20 | | 3+3-3= | | 3p-30=102 | | 10u+66=5u+91 | | ×-3/×=2/5 | | tanx=0.009 | | 3x^2-16-16=0 | | y=4/5x-3;(-7,-2) | | 2b=8-8b | | y=-3+(10-1)(-12) | | y=-3+(8-1)(-12) | | y=-3+(3-1)(-12) | | 8z-26+6z-50+2z+5z-50+60+31+z+43=360 | | 4u+u+7+31+2u+2u-1+86+2u-16=360 | | 2x+y=17+2(x+2y) | | 6q-18+40+7q-24+20q-38+41+95=360 | | 2c+2c-32+30+2c+2c-46+32+32+2c=360 | | -4(-6x-y+9)= | | 13s-46+2s+15+s+23+7s+29+11s+s+24=360 | | 3m+2n^3= | | -4(-6-y+9)= | | w+25+3w+w+2w+16+2w+13=360 | | c+25+3c-31+122+c-10+2c-26=360 | | s+38+s+22+7s+6s=360 |