If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
((9*b)/4)*b = 0
9/4*b^2 = 0 // : 9/4
b^2 = 0
b = 0
b = 0
| k/4=6.7 | | -4x-2forx=5 | | 10x-9y=-5 | | 3/5x^2=18/5x+3/5 | | (2x+5)(5x-9)=0 | | V/3+1/4=5/12 | | Y-5=2y+6-y | | 0=10r^2-28r-160 | | T^2+13t+36= | | 8x^2+22x-18=10-3x | | X/7-8=-12 | | 3(x^2-2x)+3x^2=5x-11 | | 45-(-18)= | | -6b=-3 | | 8c-c^2= | | (4b-16)/(3b) | | 30b^2+19ba-63a^2= | | 450000.00-2200000x=0 | | 3800000000/4600000000=x/365 | | (9b^2)/(4b^2-32b+64) | | 4x+y=2209 | | -1/c^2=-1/3 | | -1c^2=-1/3 | | -1/x^2=-1/3 | | 18x^4-128=0 | | 15s^2+s-2= | | 6x+2y=-50 | | 450000.00-33000.00=-155000.00+12000.00x | | Y=3x^2-8x | | (4x^-2/3y^-2)^-2 | | 0=cosx-sinx | | 11r+68/3=-3 |