If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( k )
2*k = 0
2*k = 0
2*k = 0
2*k = 0 // : 2
k = 0
k in (-oo:0) U (0:+oo)
(8*k^2-6)/(2*k) = 0
8*k^2 = 6 // : 8
k^2 = 3/4
k^2 = 3/4 // ^ 1/2
abs(k) = (3/4)^(1/2)
k = (3/4)^(1/2) or k = -(3/4)^(1/2)
k in { (3/4)^(1/2), -(3/4)^(1/2) }
| 0,251=x^(2/3) | | -16t^2+15t+12=0 | | 2x+5=x+x+x+1 | | 65/120 | | 3-2x=-32-8x | | 9x+3(-3-4x)=-3 | | 5*-3+3y=10 | | 9/6=4 | | 3x+5[-3y]=16 | | 8x-28+10x+4= | | 2(8x-8)=4(3x+5) | | 3b-6/6 | | 7-12=-6+9 | | 2a+3a+4b+3b= | | 1/5=(x*(9/20))/(x) | | -75x+93=-5x+100 | | 4a-b=117 | | (12x)+(17y)=271 | | -75x+93=-5+100 | | 2p/3=12-(-2) | | 6(c+3)= | | 4r^2+19r-5=0 | | 15x+47=77 | | 0.75(5v+11)-0.25(11+v)= | | n-4=45 | | 4(5x+7)=9x+12 | | 24/6=2*m | | .16=2/x | | 12/28=r/63 | | 104/36 | | M+7=20-4 | | -2x+72=-25 |