If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x^2 = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
(5/4)*x+3/4 = 2/(x^2) // - 2/(x^2)
(5/4)*x-(2/(x^2))+3/4 = 0
(5/4)*x-2*x^-2+3/4 = 0
5/4*x^1-2*x^-2+3/4*x^0 = 0
(5/4*x^3+3/4*x^2-2*x^0)/(x^2) = 0 // * x^4
x^2*(5/4*x^3+3/4*x^2-2*x^0) = 0
x^2
(5/4)*x^3+(3/4)*x^2-2 = 0
(5/4)*x^3+(3/4)*x^2-2 = 0 // * 0
{ 1, -1, 2, -2, 4, -4, 8, -8 }
1
x = 1
5*x^3+3*x^2-8 = 0
1
x-1
5*x^2+8*x+8
5*x^3+3*x^2-8
x-1
5*x^2-5*x^3
8*x^2-8
8*x-8*x^2
8*x-8
8-8*x
0
5*x^2+8*x+8 = 0
DELTA = 8^2-(4*5*8)
DELTA = -96
DELTA < 0
x in { 1}
x = 1
| (x/2)-40=10 | | y=-45-2 | | 5x+7=-5x+12 | | -18=1x-3x | | Ln(x+5)+ln(x-2)=2lnx | | 1824-2x=-2200 | | x+(x+22)+(x-30)=897 | | f(-4)=5(-4)-3 | | y+18=2 | | X-4y=-48 | | y+-6=2 | | 1824+2x=-2200 | | 1824-2x=-2000 | | -176.4+x/5=225 | | 4w^2-49p^2=0 | | (16u^6-12u^4)/4u^3 | | B^3+8=0 | | B^3-64=0 | | 4v^4-1024=0 | | 9s^2+p^2-6sp=0 | | X^3+7x^2-8x-56=0 | | (3+2)(6+8x)=5-6.5(x+3) | | (4x+9y)(4x-9y)= | | 12b^2-11bt-15t^2=0 | | 4x-5a=7 | | 3(9x-24)=3-1(x+5) | | 6x+14-5x=-9x-15+x | | 15x^3-10x+5x=0 | | 24/15-92/5 | | [15-7(x-5y)]+10(7x+y)= | | (0.8+4)(0.8x-4)= | | x+.27x=50 |