If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
4*x < 0
4*x < 0
4*x < 0
4*x+0 < 0 // - 0
4*x < 0 // : 4
x < 0/4
x < 0
x in <0:+oo)
(4*x)^(1/2) = 0
2*x^(1/2) = 0 // : 2
x^(1/2) = 0
x = 0
x = 0
| 40x+20y=200 | | 590+y=3y-10 | | 2=2y-2x | | 5(x-5)=7(x-1) | | -7x^2+14x+16x=0 | | 3m+n=2 | | -5(12-3x)=4x+17 | | X^2-(2+k)x+k=0 | | 4x^2+3y^2-40x+6y+91=0 | | y-(1/4)=1*(x-(1/2)) | | 3+6=1 | | (x^2+5x+4)(x^2+5x+6)=3 | | 7s-37=89 | | 5[2x-4(3x+1)]=10x+20 | | 9z^3/4-i | | 2y=4log | | 8x-(6+3x)=14 | | Sin30=x/1.5 | | -x^3+4x^2-3x= | | 2/8=10/8 | | 28/10/8 | | 2/8=2/8 | | 3p+6q=36 | | 2x+(-1)=13 | | x-x^2-9=0 | | 10x=15y | | 0.25k+0.2k=1 | | 2x+y(4)=13 | | 4(x+1)-2(x-3)=17 | | –0,2x=7/8 | | X^2+2mx+m^2=1 | | 2(4)+y=13 |