If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( b )
b = 0
b = 0
b = 0
b in (-oo:0) U (0:+oo)
-16/b = -4 // + 4
4-16/b = 0
-16*b^-1 = -4 // : -16
b^-1 = 1/4
-1 < 0
1/(b^1) = 1/4 // * b^1
1 = 1/4*b^1 // : 1/4
4 = b^1
b = 4
b = 4
| 4a-9b^2=4a^2-2b | | -10+10=0 | | 7.5x^2-0.2412x=0 | | 4n=-n^2-4 | | 11x+12=56 | | C(x)=0.0002x^2+24 | | 7.5x^2-0.2412=0 | | 20x=24x+17 | | 8g-4=7g+6 | | 4x+5y=115 | | -8x=-12-x^2 | | -30w^7+15w^7= | | 21j=16(j-8) | | h=-16t^2+169t+35 | | -6(y-4)=12 | | y=4-3/7 | | 4d-2d=12 | | 4j+4=3j+8 | | 6m=9m-3m | | 5-t=4 | | (m+2)+3ni=5-12i | | y=7x-4/7 | | 6xsquared+15=33 | | -5(-4)=-4/-2 | | y=0.2x+0.5 | | 12a^4+(-29a^4)= | | 8-5m-10m=18-2m | | 7+30x=15x+34 | | Y=sqrt(14*X+10)-SQRT(7*x-15) | | -8-12d-6d^2+3.5d^3=0 | | ((3u)^-14)/((3u)^-8) | | 8+12d+6d^2-3.5d^3=0 |