If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
9*x < 0
9*x < 0
9*x < 0
9*x+0 < 0 // - 0
9*x < 0 // : 9
x < 0/9
x < 0
x in <0:+oo)
(9*x)^(1/2) = 0
3*x^(1/2) = 0 // : 3
x^(1/2) = 0
x = 0
x = 0
| 2x=9/16 | | (xy)(x+y)= | | (xy)(xy)= | | x*=9/16 | | x*2=150 | | 3x+7x=17 | | lne^7x=0 | | 5(-4.6+-1.8y)+9y=-23 | | x^2(x+2)= | | x^1(x+2)= | | 0=1n-15-4n | | 40x^3-50x^2+30x=0 | | Y=2/7•4-3 | | x+2y+3z=3 | | 16(t^2-6+8)=0 | | 4[x(2-5)-2(-1-2x)]= | | 16(t^2-5t+6)=0 | | 8/5-i= | | -8(-4-2z)=8z | | f(x)=5-6x+3x^2 | | x[-3(-4+5)+3]= | | 12x=2-(-10) | | (14-2x)^2/3=4 | | 3w-16w=-65 | | A(w)=500-18w | | 8x+1=15x+1 | | 4[2(x+1)-3]= | | (4y+9)(6-y)=0 | | 4-a/-3=-3 | | -3/4-a= | | X-1-1/10 | | 7/y-8/9 |